/*
Theme Name: YMY
Theme URI: https://yimen.net
Description: YMY 是一款专门用于售卖 WordPress 主题的商城型主题，支持产品展示、购买流程和下载分发。
Version: 1.0.0
Author: keyeavi
Author URI: https://yimen.net
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ymy
Domain Path: /languages
Requires at least: 5.0
Requires PHP: 7.4
*/

/* ==========================================================================
   1. CSS Variables — Premium Minimalist Design System
   ========================================================================== */

:root {
    --ymy-bg-body: #ffffff;
    --ymy-bg-page: #f8f9fc;
    --ymy-bg-card: #ffffff;
    --ymy-bg-header: var(--ymy-header-bg, #ffffff);
    --ymy-bg-card-hover: #f8fafd;
    --ymy-bg-input: #f5f7fa;
    --ymy-bg-elevated: #f0f2f5;
    --ymy-bg-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    --ymy-text-primary: #1a1a2e;
    --ymy-text-secondary: #4a5568;
    --ymy-text-muted: #a0aec0;
    --ymy-text-placeholder: #a0aec0;

    --ymy-border-color: #e2e8f0;
    --ymy-border-light: #edf2f7;
    --ymy-border-input: #e2e8f0;

    --ymy-accent: #5a67d8;
    --ymy-accent-hover: #4c51bf;
    --ymy-accent-light: rgba(90, 103, 216, 0.08);
    --ymy-accent-secondary: #48bb78;

    --ymy-shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --ymy-shadow-card: 0 4px 20px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.03);
    --ymy-shadow-card-hover: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
    --ymy-shadow-overlay: 0 20px 60px rgba(0,0,0,0.15);
    --ymy-shadow-header: 0 1px 0 rgba(0,0,0,0.04);

    --ymy-overlay: rgba(0,0,0,0.5);

    --ymy-spacing-xs: 4px;
    --ymy-spacing-sm: 8px;
    --ymy-spacing-md: 16px;
    --ymy-spacing-lg: 24px;
    --ymy-spacing-xl: 32px;
    --ymy-spacing-2xl: 48px;
    --ymy-spacing-3xl: 72px;
    --ymy-spacing-4xl: 96px;

    --ymy-radius-sm: 6px;
    --ymy-radius-md: 10px;
    --ymy-radius-lg: 16px;
    --ymy-radius-xl: 24px;

    --ymy-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    --ymy-font-size-xs: 12px;
    --ymy-font-size-sm: 13px;
    --ymy-font-size-md: 14px;
    --ymy-font-size-base: 15px;
    --ymy-font-size-lg: 16px;
    --ymy-font-size-xl: 18px;
    --ymy-font-size-2xl: 24px;
    --ymy-font-size-3xl: 32px;
    --ymy-font-size-4xl: 42px;

    --ymy-transition-fast: 0.15s ease;
    --ymy-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --ymy-transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   2. Reset & Global
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--ymy-font-family);
    font-size: var(--ymy-font-size-base);
    line-height: 1.6;
    color: var(--ymy-text-primary);
    background: var(--ymy-bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--ymy-accent); text-decoration: none; transition: color var(--ymy-transition-fast); }
a:hover { color: var(--ymy-accent-hover); }

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

/* ==========================================================================
   3. Container
   ========================================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }
}

/* ==========================================================================
   4. Header
   ========================================================================== */

.ymy-header {
    background: var(--ymy-bg-header);
    box-shadow: var(--ymy-shadow-header);
    transition: box-shadow var(--ymy-transition);
}

.ymy-header-sticky {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.ymy-header.ymy-is-scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.ymy-header-inner {
    display: flex;
    align-items: center;
    height: var(--ymy-header-height, 64px);
    gap: 32px;
}

.ymy-header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.ymy-header-logo {
    display: flex;
    align-items: center;
}

.ymy-header-logo img {
    height: 32px;
    width: auto;
}

.ymy-header-logo-text {
    font-size: var(--ymy-font-size-xl);
    font-weight: 700;
    color: var(--ymy-header-text, var(--ymy-text-primary));
    letter-spacing: -0.02em;
}

.ymy-header-logo-text:hover {
    color: var(--ymy-header-hover, var(--ymy-accent));
}

.ymy-header-intro {
    font-size: var(--ymy-font-size-sm);
    color: var(--ymy-text-muted);
    padding-left: 12px;
    border-left: 1px solid var(--ymy-border-color);
    white-space: nowrap;
}

/* Navigation */
.ymy-header-nav {
    flex: 1;
    display: flex;
    align-items: center;
}

.ymy-nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.ymy-nav-menu li { position: relative; }

.ymy-nav-menu a {
    display: block;
    padding: 8px 14px;
    font-size: var(--ymy-font-size-md);
    font-weight: 500;
    color: var(--ymy-header-text, var(--ymy-text-primary));
    border-radius: var(--ymy-radius-sm);
    transition: color var(--ymy-transition-fast), background var(--ymy-transition-fast);
}

.ymy-nav-menu a:hover {
    color: var(--ymy-header-hover, var(--ymy-accent));
    background: var(--ymy-accent-light);
}

.ymy-nav-menu .current-menu-item > a,
.ymy-nav-menu .current_page_parent > a {
    color: var(--ymy-header-hover, var(--ymy-accent));
    font-weight: 600;
}

.ymy-nav-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 160px;
    background: var(--ymy-bg-card);
    border-radius: var(--ymy-radius-md);
    box-shadow: var(--ymy-shadow-overlay);
    padding: 6px;
    z-index: 100;
    list-style: none;
}

.ymy-nav-menu li:hover > .sub-menu { display: block; }

.ymy-nav-menu .sub-menu a {
    padding: 8px 12px;
    font-size: var(--ymy-font-size-sm);
    font-weight: 400;
    border-radius: var(--ymy-radius-sm);
}

/* Header actions */
.ymy-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.ymy-header-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: 50%;
    cursor: pointer;
    color: var(--ymy-header-text, var(--ymy-text-secondary));
    transition: background var(--ymy-transition-fast), color var(--ymy-transition-fast);
}

.ymy-header-action-btn:hover {
    background: var(--ymy-accent-light);
    color: var(--ymy-accent);
}

/* Dark mode toggle icons */
body:not(.ymy-dark-mode) .ymy-icon-sun { display: none; }
body:not(.ymy-dark-mode) .ymy-icon-moon { display: block; }
body.ymy-dark-mode .ymy-icon-sun { display: block; }
body.ymy-dark-mode .ymy-icon-moon { display: none; }

/* Mobile toggle */
.ymy-mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    gap: 5px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--ymy-radius-sm);
}

.ymy-mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ymy-header-text, var(--ymy-text-primary));
    border-radius: 2px;
    transition: all var(--ymy-transition);
}

.ymy-mobile-toggle.ymy-is-active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.ymy-mobile-toggle.ymy-is-active span:nth-child(2) { opacity: 0; }
.ymy-mobile-toggle.ymy-is-active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Search panel */
.ymy-search-panel {
    display: none;
    background: var(--ymy-bg-card);
    border-bottom: 1px solid var(--ymy-border-light);
    padding: 16px 0;
}

.ymy-search-panel.ymy-is-open { display: block; }

.ymy-search-form {
    display: flex;
    gap: 8px;
    max-width: 600px;
    margin: 0 auto;
}

.ymy-search-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--ymy-border-input);
    border-radius: var(--ymy-radius-md);
    font-size: var(--ymy-font-size-base);
    font-family: var(--ymy-font-family);
    background: var(--ymy-bg-input);
    color: var(--ymy-text-primary);
    outline: none;
    transition: border-color var(--ymy-transition-fast), box-shadow var(--ymy-transition-fast);
}

.ymy-search-input:focus {
    border-color: var(--ymy-accent);
    box-shadow: 0 0 0 3px var(--ymy-accent-light);
}

.ymy-search-input::placeholder { color: var(--ymy-text-placeholder); }

.ymy-search-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: none;
    background: var(--ymy-accent);
    color: #fff;
    border-radius: var(--ymy-radius-md);
    cursor: pointer;
    transition: background var(--ymy-transition-fast);
}

.ymy-search-submit:hover { background: var(--ymy-accent-hover); }

/* ==========================================================================
   5. Footer
   ========================================================================== */

.ymy-footer {
    background: #1a1a2e;
    color: #a0aec0;
    padding: var(--ymy-spacing-3xl) 0 var(--ymy-spacing-xl);
    margin-top: var(--ymy-spacing-4xl);
}

.ymy-footer-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ymy-spacing-2xl);
}

.ymy-footer-col {
    flex: 1 1 150px;
    min-width: 150px;
}

.ymy-footer-col.ymy-footer-brand {
    flex: 2 1 240px;
    min-width: 240px;
}

.ymy-footer-title {
    color: #fff;
    font-size: var(--ymy-font-size-lg);
    font-weight: 600;
    margin-bottom: var(--ymy-spacing-md);
}

.ymy-footer-desc {
    font-size: var(--ymy-font-size-sm);
    line-height: 1.8;
    max-width: 360px;
}

.ymy-footer-menu {
    list-style: none;
}

.ymy-footer-menu li { margin-bottom: var(--ymy-spacing-sm); }

.ymy-footer-menu a {
    color: #a0aec0;
    font-size: var(--ymy-font-size-sm);
    transition: color var(--ymy-transition-fast);
}

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

.ymy-footer-contact {
    list-style: none;
    font-size: var(--ymy-font-size-sm);
}

.ymy-footer-contact li { margin-bottom: var(--ymy-spacing-sm); }

.ymy-footer-copyright {
    margin-top: var(--ymy-spacing-md);
    font-size: var(--ymy-font-size-xs);
    color: #718096;
}

.ymy-footer-icp {
    margin-top: var(--ymy-spacing-xs);
    font-size: var(--ymy-font-size-xs);
    color: #718096;
}

.ymy-footer-icp a { color: #a0aec0; }
.ymy-footer-icp a:hover { color: #fff; }

/* ==========================================================================
   6. Buttons
   ========================================================================== */

.ymy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    font-size: var(--ymy-font-size-md);
    font-family: var(--ymy-font-family);
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--ymy-radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--ymy-transition);
    line-height: 1.5;
    white-space: nowrap;
}

.ymy-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.ymy-btn-primary:hover {
    background: var(--ymy-accent-hover);
    border-color: var(--ymy-accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(90, 103, 216, 0.3);
}

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

.ymy-btn-outline:hover {
    background: var(--ymy-accent);
    color: #fff;
    transform: translateY(-1px);
}

.ymy-btn-sm {
    padding: 7px 16px;
    font-size: var(--ymy-font-size-sm);
    border-radius: var(--ymy-radius-sm);
}

.ymy-btn-lg {
    padding: 14px 32px;
    font-size: var(--ymy-font-size-lg);
    border-radius: var(--ymy-radius-md);
}

.ymy-btn-buy {
    background: var(--ymy-accent);
    color: #fff;
    border-color: var(--ymy-accent);
    padding: 12px 28px;
    font-size: var(--ymy-font-size-base);
}

.ymy-btn-buy:hover {
    background: var(--ymy-accent-hover);
    border-color: var(--ymy-accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(90, 103, 216, 0.3);
}

.ymy-btn-qq {
    background: #12B7F5;
    color: #fff;
    border-color: #12B7F5;
}

.ymy-btn-qq:hover {
    background: #0da3db;
    border-color: #0da3db;
    color: #fff;
}

.ymy-btn-wechat {
    background: #07C160;
    color: #fff;
    border-color: #07C160;
}

.ymy-btn-wechat:hover {
    background: #06a852;
    border-color: #06a852;
    color: #fff;
}

.ymy-btn-demo {
    position: absolute;
    bottom: var(--ymy-spacing-md);
    left: var(--ymy-spacing-md);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.95);
    color: var(--ymy-accent);
    border-radius: var(--ymy-radius-sm);
    font-size: var(--ymy-font-size-sm);
    font-weight: 500;
    backdrop-filter: blur(4px);
    transition: all var(--ymy-transition-fast);
    text-decoration: none;
}

.ymy-btn-demo:hover {
    background: var(--ymy-accent);
    color: #fff;
}

/* ==========================================================================
   7. Utilities
   ========================================================================== */

.ymy-text-center { text-align: center; }
.ymy-is-hidden { display: none !important; }

/* ==========================================================================
   8. Breadcrumb
   ========================================================================== */

.ymy-breadcrumb {
    padding: var(--ymy-spacing-lg) 0;
    font-size: var(--ymy-font-size-sm);
    color: var(--ymy-text-muted);
}

.ymy-breadcrumb a {
    color: var(--ymy-text-secondary);
}

.ymy-breadcrumb a:hover { color: var(--ymy-accent); }

.ymy-breadcrumb-sep {
    margin: 0 8px;
    opacity: 0.5;
}

/* ==========================================================================
   9. Pagination
   ========================================================================== */

.ymy-pagination {
    margin-top: var(--ymy-spacing-2xl);
    display: flex;
    justify-content: center;
    gap: 6px;
}

.ymy-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--ymy-border-color);
    border-radius: var(--ymy-radius-sm);
    color: var(--ymy-text-secondary);
    text-decoration: none;
    font-size: var(--ymy-font-size-sm);
    transition: all var(--ymy-transition-fast);
}

.ymy-pagination .page-numbers.current {
    background: var(--ymy-accent);
    border-color: var(--ymy-accent);
    color: #fff;
}

.ymy-pagination .page-numbers:hover:not(.current) {
    border-color: var(--ymy-accent);
    color: var(--ymy-accent);
}

/* ==========================================================================
   10. Page Title
   ========================================================================== */

.ymy-page-title {
    font-size: var(--ymy-font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--ymy-spacing-lg);
    color: var(--ymy-text-primary);
    letter-spacing: -0.02em;
}

/* ==========================================================================
   11. Modal
   ========================================================================== */

.ymy-modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--ymy-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--ymy-transition), visibility var(--ymy-transition);
}

.ymy-modal-overlay.ymy-is-visible {
    opacity: 1;
    visibility: visible;
}

.ymy-modal {
    background: var(--ymy-bg-card);
    border-radius: var(--ymy-radius-lg);
    padding: var(--ymy-spacing-lg);
    min-width: 320px;
    max-width: 90vw;
    box-shadow: var(--ymy-shadow-overlay);
}

.ymy-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--ymy-spacing-md);
    font-weight: 600;
    font-size: var(--ymy-font-size-lg);
}

.ymy-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--ymy-text-muted);
    line-height: 1;
    padding: 4px;
}

.ymy-modal-close:hover { color: var(--ymy-text-primary); }

.ymy-modal-body {
    font-size: var(--ymy-font-size-base);
    color: var(--ymy-text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   12. Back to Top
   ========================================================================== */

.ymy-back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ymy-bg-card);
    border: 1px solid var(--ymy-border-color);
    box-shadow: var(--ymy-shadow-card);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--ymy-text-secondary);
    transition: all var(--ymy-transition-fast);
    z-index: 100;
}

.ymy-back-to-top:hover {
    border-color: var(--ymy-accent);
    color: var(--ymy-accent);
    transform: translateY(-2px);
}

/* ==========================================================================
   13. Responsive — Header
   ========================================================================== */

@media (max-width: 1024px) {
    .ymy-header-nav {
        display: none;
        position: absolute;
        top: var(--ymy-header-height, 64px);
        left: 0;
        right: 0;
        background: var(--ymy-bg-card);
        border-bottom: 1px solid var(--ymy-border-light);
        padding: 12px 24px;
        z-index: 150;
        box-shadow: var(--ymy-shadow-card);
    }

    .ymy-header-nav.ymy-is-open { display: block; }

    .ymy-header-nav .ymy-nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .ymy-header-nav .ymy-nav-menu a {
        padding: 12px 0;
        border-bottom: 1px solid var(--ymy-border-light);
        border-radius: 0;
        font-size: var(--ymy-font-size-base);
    }

    .ymy-header-nav .ymy-nav-menu li:last-child a {
        border-bottom: none;
    }

    .ymy-mobile-toggle { display: flex; }

    .ymy-header-intro { display: none; }
}

@media (max-width: 768px) {
    .ymy-header-inner { gap: 12px; }

    .ymy-footer-grid {
        flex-direction: column;
        gap: var(--ymy-spacing-xl);
    }
}