/* ========== QH3.0 VitePress-inspired Theme ========== */
:root {
    --vp-c-brand: #2d8cf0;
    --vp-c-brand-light: #57a3f3;
    --vp-c-brand-lighter: #e8f2fd;
    --vp-c-brand-dark: #1b7ad8;
    --vp-c-text: #1e293b;
    --vp-c-text-soft: #475569;
    --vp-c-text-light: #94a3b8;
    --vp-c-bg: #ffffff;
    --vp-c-bg-soft: #f8fafc;
    --vp-c-bg-alt: #f1f5f9;
    --vp-c-border: #e2e8f0;
    --vp-c-border-light: #f1f5f9;
    --vp-radius: 12px;
    --vp-radius-sm: 8px;
    --vp-shadow: 0 1px 3px rgba(0,0,0,.06);
    --vp-shadow-md: 0 4px 16px rgba(0,0,0,.08);
    --vp-shadow-lg: 0 12px 32px rgba(0,0,0,.1);
    --vp-font: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;
    --vp-max-w: 1152px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: var(--vp-font);
    font-size: 16px;
    color: var(--vp-c-text);
    background: var(--vp-c-bg-soft);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== NAV ========== */
.vp-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--vp-c-border);
    transition: background .3s;
}
.vp-nav-inner {
    max-width: var(--vp-max-w);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.vp-nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--vp-c-text);
    text-decoration: none;
}
.vp-nav-logo img { height: 36px; width: auto; }
.vp-nav-logo:hover { color: var(--vp-c-brand); }
.vp-nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.vp-nav-links a {
    padding: 8px 16px;
    border-radius: var(--vp-radius-sm);
    color: var(--vp-c-text-soft);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: color .2s, background .2s;
    display: block;
    white-space: nowrap;
}
.vp-nav-links a:hover { color: var(--vp-c-brand); background: var(--vp-c-brand-lighter); }
.vp-nav-login {
    background: var(--vp-c-brand) !important;
    color: #fff !important;
    font-weight: 600;
}
.vp-nav-login:hover { background: var(--vp-c-brand-dark) !important; color: #fff !important; }
.vp-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--vp-c-text);
}
.vp-nav-toggle svg { width: 24px; height: 24px; display: block; }
.vp-nav-spacer { height: 64px; }

/* ========== HERO ========== */
.vp-hero {
    padding: 120px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #e8f2fd 50%, #f8fafc 100%);
}
.vp-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(ellipse at 30% 20%, rgba(45,140,240,.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(45,140,240,.04) 0%, transparent 60%);
    pointer-events: none;
}
.vp-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
}
.vp-hero-logo {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    margin-bottom: 24px;
    object-fit: contain;
    box-shadow: 0 4px 20px rgba(45,140,240,.15);
}
.vp-hero-title {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -.03em;
    line-height: 1.2;
    margin: 0 0 16px;
    background: linear-gradient(135deg, var(--vp-c-text) 0%, var(--vp-c-brand) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.vp-hero-desc {
    font-size: 17px;
    color: var(--vp-c-text-soft);
    margin: 0 0 36px;
    line-height: 1.7;
}
.vp-hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ========== BUTTONS ========== */
.vp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 28px;
    border-radius: var(--vp-radius-sm);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all .25s;
    line-height: 1.5;
    white-space: nowrap;
}
.vp-btn-brand {
    background: var(--vp-c-brand);
    color: #fff;
    box-shadow: 0 2px 8px rgba(45,140,240,.25);
}
.vp-btn-brand:hover { background: var(--vp-c-brand-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(45,140,240,.35); color: #fff; }
.vp-btn-outline {
    background: transparent;
    color: var(--vp-c-text);
    border: 1.5px solid var(--vp-c-border);
}
.vp-btn-outline:hover { border-color: var(--vp-c-brand); color: var(--vp-c-brand); background: var(--vp-c-brand-lighter); }
.vp-btn-ghost {
    background: transparent;
    color: var(--vp-c-text-soft);
    border: 1.5px solid transparent;
}
.vp-btn-ghost:hover { color: var(--vp-c-text); background: var(--vp-c-bg-alt); }

/* ========== SECTIONS ========== */
.vp-container { max-width: var(--vp-max-w); margin: 0 auto; padding: 0 24px; }
.vp-section { padding: 64px 0; }
.vp-section-alt { background: var(--vp-c-bg); }
.vp-section-title {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 48px;
    letter-spacing: -.02em;
    color: var(--vp-c-text);
}

/* ========== FEATURE CARDS ========== */
.vp-features { padding: 80px 0; }
.vp-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.vp-feature-card {
    display: block;
    padding: 28px 24px;
    border-radius: var(--vp-radius);
    background: var(--vp-c-bg);
    border: 1px solid var(--vp-c-border-light);
    text-decoration: none;
    transition: all .3s;
    cursor: pointer;
}
.vp-feature-card:hover {
    border-color: var(--vp-c-brand-lighter);
    box-shadow: var(--vp-shadow-md);
    transform: translateY(-2px);
}
.vp-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 14px;
    background: var(--vp-c-brand-lighter);
}
.vp-feature-icon .layui-icon {
    color: var(--vp-c-brand);
    font-size: 22px;
}
.vp-feature-card h3 {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 600;
    color: var(--vp-c-text);
}
.vp-feature-card p {
    margin: 0;
    font-size: 14px;
    color: var(--vp-c-text-soft);
    line-height: 1.6;
}

/* ========== CARD ========== */
.vp-card {
    background: var(--vp-c-bg);
    border-radius: var(--vp-radius);
    border: 1px solid var(--vp-c-border);
    padding: 36px 40px;
}
.vp-card-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 28px;
    color: var(--vp-c-text);
    letter-spacing: -.01em;
}

/* ========== FORM OVERRIDES ========== */
.vp-card .layui-form-item { margin-bottom: 20px; }
.vp-card .layui-form-item:last-child { margin-bottom: 0; }
.vp-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--vp-c-text);
    margin-bottom: 8px;
}

/* Override LayUI inputs for cleaner look */
.vp-card .layui-input,
.vp-card select.layui-input {
    height: 44px;
    line-height: 44px;
    border-radius: var(--vp-radius-sm);
    border: 1.5px solid var(--vp-c-border);
    padding: 0 14px;
    font-size: 15px;
    color: var(--vp-c-text);
    background: var(--vp-c-bg-soft);
    transition: all .2s;
    width: 100%;
    box-shadow: none;
    text-align: left;
    margin-top: 0;
}
.vp-card .layui-input:focus,
.vp-card select.layui-input:focus {
    border-color: var(--vp-c-brand);
    background: var(--vp-c-bg);
    box-shadow: 0 0 0 3px rgba(45,140,240,.08);
    outline: none;
}
.vp-card .layui-input:hover { border-color: #cbd5e1; }

/* Override LayUI select */
.vp-card .layui-form-select .layui-edge { right: 14px; }

/* Radio buttons as segmented control */
.vp-query-types {
    display: inline-flex;
    background: var(--vp-c-bg-alt);
    border-radius: var(--vp-radius-sm);
    padding: 4px;
    gap: 2px;
}
.vp-query-types .layui-form-radio {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    margin: 0;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--vp-c-text-soft);
    cursor: pointer;
    transition: all .2s;
}
.vp-query-types .layui-form-radio:hover { color: var(--vp-c-text); }
.vp-query-types .layui-form-radioed {
    background: var(--vp-c-bg);
    color: var(--vp-c-brand);
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.vp-query-types .layui-form-radio i { display: none; }

/* Introduce block */
.vp-introduce {
    display: none;
    margin-bottom: 20px;
    padding: 14px 18px;
    background: #f0f5ff;
    border-radius: var(--vp-radius-sm);
    border-left: 3px solid var(--vp-c-brand);
    font-size: 14px;
    color: var(--vp-c-text-soft);
    line-height: 1.6;
}

.vp-notice-content {
    padding: 20px;
    line-height: 1.8;
}

/* Form actions */
.vp-form-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

/* ========== REGISTER SECTION ========== */
.vp-register-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

/* ========== FOOTER ========== */
.vp-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--vp-c-text-light);
    font-size: 13px;
    line-height: 1.8;
    border-top: 1px solid var(--vp-c-border);
    background: var(--vp-c-bg);
}
.vp-footer p { margin: 2px 0; }

/* ========== RESPONSIVE ========== */

/* Tablet landscape (≤1024px) */
@media (max-width: 1024px) {
    .vp-container { padding: 0 20px; }
    .vp-nav-inner { padding: 0 20px; }
    .vp-hero-title { font-size: 36px; }
    .vp-hero { padding: 100px 20px 70px; }
    .vp-section { padding: 48px 0; }
    .vp-features { padding: 56px 0; }
}

/* Tablet portrait / large phones (≤768px) */
@media (max-width: 768px) {
    .vp-nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--vp-c-bg);
        flex-direction: column;
        padding: 12px;
        border-bottom: 1px solid var(--vp-c-border);
        box-shadow: 0 10px 30px rgba(0,0,0,.1);
    }
    .vp-nav-links.open { display: flex; }
    .vp-nav-links a { padding: 14px 16px; width: 100%; }
    .vp-nav-toggle { display: block; }
    .vp-nav-login { text-align: center; }

    .vp-features-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .vp-feature-card { padding: 22px 18px; }
    .vp-register-grid { grid-template-columns: 1fr; gap: 0; }

    .vp-hero { padding: 88px 16px 56px; }
    .vp-hero-title { font-size: 30px; }
    .vp-hero-desc { font-size: 15px; margin-bottom: 28px; }
    .vp-hero-logo { width: 64px; height: 64px; border-radius: 16px; }
    .vp-hero-actions { flex-direction: column; align-items: center; }
    .vp-hero-actions .vp-btn { width: 100%; max-width: 280px; }

    .vp-section { padding: 40px 0; }
    .vp-section-title { font-size: 24px; margin-bottom: 32px; }
    .vp-features { padding: 48px 0; }
    .vp-card { padding: 24px 18px; }
    .vp-card-title { font-size: 20px; margin-bottom: 20px; }

    .vp-container { padding: 0 16px; }
    .vp-btn { padding: 10px 22px; font-size: 14px; }
    .vp-footer { padding: 24px 16px; }
}

/* Small phones (≤480px) */
@media (max-width: 480px) {
    .vp-nav-logo { font-size: 16px; }
    .vp-nav-logo img { height: 28px; }
    .vp-nav-inner { padding: 0 14px; height: 56px; }
    .vp-nav-spacer { height: 56px; }
    .vp-nav-links { top: 56px; }

    .vp-hero { padding: 72px 12px 44px; }
    .vp-hero-title { font-size: 24px; }
    .vp-hero-desc { font-size: 14px; margin-bottom: 24px; }
    .vp-hero-logo { width: 56px; height: 56px; border-radius: 14px; margin-bottom: 16px; }
    .vp-hero-actions .vp-btn { max-width: 100%; }

    .vp-features-grid { grid-template-columns: 1fr; gap: 12px; }
    .vp-feature-card { padding: 18px 16px; }
    .vp-feature-card h3 { font-size: 15px; }
    .vp-feature-card p { font-size: 13px; }
    .vp-feature-icon { width: 36px; height: 36px; border-radius: 8px; margin-bottom: 10px; }

    .vp-section { padding: 32px 0; }
    .vp-section-title { font-size: 21px; margin-bottom: 24px; }
    .vp-features { padding: 36px 0; }
    .vp-card { padding: 18px 14px; border-radius: 10px; }
    .vp-card-title { font-size: 18px; margin-bottom: 16px; }

    .vp-container { padding: 0 12px; }
    .vp-btn { padding: 12px 18px; font-size: 14px; width: 100%; }
    .vp-form-actions { flex-direction: column; }
    .vp-form-actions .vp-btn { width: 100%; }

    .vp-query-types { width: 100%; }
    .vp-query-types .layui-form-radio { flex: 1; justify-content: center; padding: 8px 12px; font-size: 13px; }

    .vp-card .layui-input,
    .vp-card select.layui-input { height: 42px; font-size: 14px; padding: 0 12px; }
    .vp-label { font-size: 13px; margin-bottom: 6px; }
    .vp-footer { font-size: 12px; padding: 20px 12px; }
}

/* ========== ANIMATIONS ========== */
@keyframes vp-fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.vp-feature-card { animation: vp-fade-up .5s ease both; }
.vp-feature-card:nth-child(1) { animation-delay: .05s; }
.vp-feature-card:nth-child(2) { animation-delay: .1s; }
.vp-feature-card:nth-child(3) { animation-delay: .15s; }
.vp-feature-card:nth-child(4) { animation-delay: .2s; }
.vp-feature-card:nth-child(5) { animation-delay: .25s; }

/* ========== LayUI override: hide radio icons in segmented control ========== */
.vp-query-types .layui-form-radio > i.layui-anim { display: none !important; }

/* ========== Fix LayUI select inside vp-card ========== */
.vp-card .layui-form-select .layui-input { padding-right: 30px; }
.vp-card .layui-input-block { margin-left: 0; }
.vp-card .layui-form-pane .layui-form-label {
    /* Keep pane form labels clean */
    border-radius: var(--vp-radius-sm);
}

/* ========== Shared inner-page shell ========== */
.vp-page-section {
    min-height: calc(100vh - 52px);
    padding: 40px 0;
}
.vp-page-footer {
    padding: 20px 24px;
    border-top: 1px solid #e2e8f0;
    color: #94a3b8;
    font-size: 13px;
    line-height: 1.8;
    text-align: center;
}
.vp-page-footer p { margin: 2px 0; }

/* ========== Plugin market ========== */
.pm-hero {
    padding: 48px 24px 40px;
    text-align: center;
    background: linear-gradient(180deg, #f8fafc 0%, #e8f2fd 50%, #f8fafc 100%);
    border-bottom: 1px solid #e2e8f0;
}
.pm-hero h1 { margin: 0 0 8px; color: #1e293b; font-size: 28px; font-weight: 700; }
.pm-hero p { margin: 0; color: #64748b; font-size: 15px; }
.pm-search { max-width: 480px; margin: 20px auto 0; }
.pm-search input {
    width: 100%;
    height: 44px;
    padding: 0 16px;
    background: #fff;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    outline: none;
    font-size: 14px;
    transition: border-color .2s;
}
.pm-search input:focus { border-color: #2d8cf0; box-shadow: 0 0 0 3px rgba(45, 140, 240, .08); }
.pm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    padding: 32px 0 48px;
}
.pm-card {
    position: relative;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    overflow: hidden;
    background: #fff;
    border: 1px solid #f1f5f9;
    border-radius: 12px;
    cursor: pointer;
    transition: all .3s;
}
.pm-card:hover { border-color: #c8daf8; box-shadow: 0 4px 16px rgba(0, 0, 0, .08); transform: translateY(-2px); }
.pm-card-badge {
    position: absolute;
    top: 0;
    right: 0;
    padding: 3px 12px;
    color: #fff;
    border-radius: 0 12px 0 10px;
    font-size: 11px;
    font-weight: 600;
}
.pm-card-badge.soon { background: linear-gradient(135deg, #4facfe, #2d8cf0); }
.pm-card-badge.hot { background: linear-gradient(135deg, #ff6b6b, #ee5a24); }
.pm-card-icon { width: 52px; height: 52px; flex-shrink: 0; object-fit: cover; background: #e8f2fd; border-radius: 12px; }
.pm-card-body { flex: 1; min-width: 0; }
.pm-card-body h3 { margin: 0 0 4px; color: #1e293b; font-size: 16px; font-weight: 600; }
.pm-card-body .pm-desc {
    display: -webkit-box;
    margin: 0 0 10px;
    overflow: hidden;
    color: #64748b;
    font-size: 13px;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.pm-card-meta { display: flex; gap: 14px; align-items: center; color: #94a3b8; font-size: 12px; }
.pm-card-meta span { display: flex; gap: 3px; align-items: center; }
.pm-empty { padding: 80px 24px; color: #94a3b8; text-align: center; }
.pm-pager { padding-bottom: 40px; text-align: center; }
.pm-pager-inner { display: inline-flex; gap: 6px; align-items: center; }
.pm-pager-status { padding: 0 8px; color: #64748b; font-size: 14px; }
.pm-login-dialog { padding: 32px 24px; text-align: center; }
.pm-login-icon { color: #f59e0b; font-size: 48px; }
.pm-login-title { margin: 16px 0 8px; color: #1e293b; font-size: 16px; font-weight: 600; }
.pm-login-help { margin: 0 0 20px; color: #64748b; font-size: 14px; }
.pm-login-actions { display: flex; gap: 10px; justify-content: center; }

@media (max-width: 900px) {
    .pm-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
    .pm-card { padding: 20px; }
}
@media (max-width: 640px) {
    .pm-grid { grid-template-columns: 1fr; gap: 12px; padding: 24px 0 36px; }
    .pm-hero { padding: 36px 16px 32px; }
    .pm-hero h1 { font-size: 22px; }
    .pm-hero p { font-size: 14px; }
    .pm-search { margin-top: 16px; }
    .pm-card { padding: 16px; border-radius: 10px; }
    .pm-card-icon { width: 44px; height: 44px; border-radius: 10px; }
    .pm-card-body h3 { font-size: 15px; }
    .pm-card-body .pm-desc { font-size: 12px; }
}
@media (max-width: 480px) {
    .pm-hero { padding: 28px 12px 24px; }
    .pm-hero h1 { font-size: 20px; }
    .pm-hero p { font-size: 13px; }
    .pm-search input { height: 40px; padding: 0 12px; font-size: 13px; }
    .pm-grid { gap: 10px; padding: 16px 0 28px; }
    .pm-card { gap: 12px; padding: 14px; }
    .pm-card-icon { width: 38px; height: 38px; border-radius: 8px; }
    .pm-card-body h3 { font-size: 14px; }
    .pm-empty { padding: 40px 16px; font-size: 14px; }
    .pm-login-actions { flex-direction: column; }
}