.platform-catalog-intro-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: 0 0 14px;
    padding: 0 4px;
}

.platform-catalog-intro-row .main-view-intro {
    margin: 0;
}

.platform-compare-launcher,
.platform-comparison-primary-btn,
.platform-comparison-secondary-btn,
.platform-comparison-primary-link {
    appearance: none;
    border: 0;
    border-radius: 10px;
    min-height: 40px;
    padding: 0 16px;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.platform-compare-launcher,
.platform-comparison-primary-btn,
.platform-comparison-primary-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #fff;
    background: #101725;
    box-shadow: 0 10px 22px rgba(16, 23, 37, 0.16);
}

.platform-compare-launcher:hover,
.platform-comparison-primary-btn:hover,
.platform-comparison-primary-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(16, 23, 37, 0.2);
}

.platform-compare-launcher-count {
    min-width: 20px;
    padding: 2px 6px;
    border-radius: 999px;
    color: #101725;
    background: #fff;
    font-size: 11px;
    line-height: 16px;
    text-align: center;
}

.platform-compare-launcher[hidden] {
    display: none;
}

.platform-comparison-secondary-btn {
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.88);
}

.platform-comparison-secondary-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(11, 104, 209, 0.28);
    box-shadow: var(--shadow-sm);
}

.platform-comparison-primary-btn:disabled {
    cursor: not-allowed;
    transform: none;
    opacity: 0.42;
    box-shadow: none;
}

/* 平台选择器：首页和对比页共用 */
.platform-compare-picker {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    padding: 24px;
}

.platform-compare-picker[hidden] {
    display: none;
}

.platform-compare-picker-backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    background: rgba(16, 23, 37, 0.54);
    backdrop-filter: blur(8px);
    cursor: default;
}

.platform-compare-picker-dialog {
    position: relative;
    display: flex;
    flex-direction: column;
    width: min(860px, 100%);
    max-height: min(760px, calc(100vh - 48px));
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 18px;
    background: #f8fafc;
    box-shadow: 0 30px 80px rgba(16, 23, 37, 0.28);
}

.platform-compare-picker-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    padding: 24px 26px 18px;
    border-bottom: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.94);
}

.platform-compare-picker-header h2 {
    margin: 0 0 6px;
    font-size: 24px;
    line-height: 1.2;
}

.platform-compare-picker-header p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.65;
}

.platform-compare-picker-close {
    appearance: none;
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    background: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
}

.platform-compare-picker-tools {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 26px 12px;
}

.platform-compare-picker-search {
    width: 100%;
    min-height: 42px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    outline: none;
    color: var(--text-primary);
    background: #fff;
    font: inherit;
}

.platform-compare-picker-search:focus {
    border-color: rgba(11, 104, 209, 0.55);
    box-shadow: 0 0 0 3px rgba(11, 104, 209, 0.1);
}

.platform-compare-picker-count {
    flex: 0 0 auto;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.platform-compare-picker-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    min-height: 160px;
    padding: 4px 26px 22px;
    overflow-y: auto;
}

.platform-compare-picker-option {
    position: relative;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr) auto;
    align-items: start;
    gap: 10px;
    min-height: 82px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.94);
    cursor: pointer;
    transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.platform-compare-picker-option:hover {
    transform: translateY(-1px);
    border-color: rgba(11, 104, 209, 0.28);
}

.platform-compare-picker-option.is-selected {
    border-color: rgba(11, 104, 209, 0.5);
    background: rgba(11, 104, 209, 0.06);
}

.platform-compare-picker-option.is-disabled {
    cursor: not-allowed;
    transform: none;
    opacity: 0.48;
}

.platform-compare-picker-option input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--accent-primary);
}

.platform-compare-picker-option-copy {
    min-width: 0;
}

.platform-compare-picker-option-name {
    display: block;
    margin-bottom: 5px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 800;
}

.platform-compare-picker-option-summary {
    display: -webkit-box;
    overflow: hidden;
    color: var(--text-tertiary);
    font-size: 12px;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.platform-compare-picker-pin {
    color: #b46a15;
    font-size: 11px;
    font-weight: 800;
}

.platform-compare-picker-empty {
    grid-column: 1 / -1;
    padding: 34px;
    color: var(--text-tertiary);
    text-align: center;
}

.platform-compare-picker-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 16px 26px;
    border-top: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.96);
}

.platform-compare-picker-note {
    margin: 0;
    color: var(--text-tertiary);
    font-size: 12px;
    line-height: 1.55;
}

body.has-platform-compare-picker {
    overflow: hidden;
}

/* 独立平台对比页 */
.platform-comparison-page {
    padding-top: 22px;
}

.platform-comparison-container {
    max-width: 1460px;
}

.platform-comparison-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    color: var(--text-tertiary);
    font-size: 13px;
}

.platform-comparison-breadcrumb a {
    color: var(--accent-primary);
    font-weight: 700;
    text-decoration: none;
}

.platform-comparison-hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 22px;
    padding: 30px 32px;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: linear-gradient(122deg, rgba(255,255,255,.98), rgba(240,246,252,.94));
    box-shadow: var(--shadow-md);
}

.platform-comparison-kicker,
.platform-comparison-eyebrow {
    margin: 0 0 9px;
    color: var(--accent-primary);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.12em;
}

.platform-comparison-hero h1 {
    margin: 0 0 10px;
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.platform-comparison-hero p:last-child {
    max-width: 760px;
    margin: 0;
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.7;
}

.platform-comparison-loading,
.platform-comparison-error {
    padding: 54px 24px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    color: var(--text-secondary);
    background: rgba(255,255,255,.88);
    text-align: center;
}

.platform-comparison-error {
    color: #a33d32;
}

.platform-comparison-selection-wrap {
    position: sticky;
    top: 0;
    z-index: 20;
    margin-bottom: 22px;
    padding: 10px;
    border: 1px solid rgba(16,23,37,.1);
    border-radius: 14px;
    background: rgba(238,242,247,.92);
    box-shadow: 0 12px 26px rgba(16,23,37,.08);
    backdrop-filter: blur(14px);
}

.platform-comparison-selection {
    display: grid;
    grid-template-columns: repeat(var(--comparison-columns, 3), minmax(210px, 1fr));
    gap: 10px;
}

.platform-comparison-select-card {
    min-width: 0;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: #fff;
}

.platform-comparison-select-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}

.platform-comparison-select-card-label {
    color: var(--text-tertiary);
    font-size: 11px;
    font-weight: 800;
}

.platform-comparison-select-card-rating {
    color: #b46a15;
    font-size: 12px;
    font-weight: 800;
}

.platform-comparison-select-card select {
    width: 100%;
    min-height: 38px;
    padding: 0 34px 0 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    color: var(--text-primary);
    background: #f8fafc;
    font: inherit;
    font-weight: 800;
}

.platform-comparison-select-card select:focus {
    border-color: rgba(11,104,209,.55);
    box-shadow: 0 0 0 3px rgba(11,104,209,.1);
}

.platform-comparison-summary,
.platform-comparison-details {
    margin-bottom: 22px;
    padding: 26px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: rgba(255,255,255,.91);
    box-shadow: var(--shadow-md);
}

.platform-comparison-section-heading,
.platform-comparison-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 18px;
}

.platform-comparison-section-heading h2,
.platform-comparison-toolbar h2 {
    margin: 0;
    font-size: 24px;
    line-height: 1.25;
}

.platform-comparison-section-heading > p {
    max-width: 440px;
    margin: 0;
    color: var(--text-tertiary);
    font-size: 12px;
    line-height: 1.6;
    text-align: right;
}

.platform-comparison-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.platform-comparison-summary-card {
    position: relative;
    min-height: 142px;
    padding: 18px;
    overflow: hidden;
    border: 1px solid rgba(16,23,37,.1);
    border-radius: 12px;
    background: linear-gradient(145deg, #fff, #f4f7fa);
}

.platform-comparison-summary-card::after {
    content: '';
    position: absolute;
    right: -28px;
    bottom: -45px;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: rgba(11,104,209,.07);
}

.platform-comparison-summary-label {
    display: block;
    margin-bottom: 14px;
    color: var(--text-tertiary);
    font-size: 12px;
    font-weight: 800;
}

.platform-comparison-summary-winner {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 900;
    line-height: 1.25;
}

.platform-comparison-summary-detail {
    position: relative;
    z-index: 1;
    margin: 0;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.6;
}

.platform-comparison-diff-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    flex: 0 0 auto;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
}

.platform-comparison-diff-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.platform-comparison-diff-toggle span {
    position: relative;
    width: 38px;
    height: 22px;
    border-radius: 999px;
    background: #cbd5e1;
    transition: background .18s ease;
}

.platform-comparison-diff-toggle span::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 2px 5px rgba(16,23,37,.2);
    transition: transform .18s ease;
}

.platform-comparison-diff-toggle input:checked + span {
    background: var(--accent-primary);
}

.platform-comparison-diff-toggle input:checked + span::after {
    transform: translateX(16px);
}

.platform-comparison-diff-toggle input:focus-visible + span {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.platform-comparison-focus-hint {
    margin: -5px 0 14px;
    color: var(--text-tertiary);
    font-size: 12px;
}

.platform-comparison-matrix-wrap {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.platform-comparison-matrix {
    min-width: calc(230px + var(--comparison-columns, 3) * 245px);
    background: #fff;
}

.platform-comparison-group-title {
    padding: 13px 16px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    color: #263349;
    background: #eef2f7;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .06em;
}

.platform-comparison-group:first-child .platform-comparison-group-title {
    border-top: 0;
}

.platform-comparison-group--focus .platform-comparison-group-title {
    color: #8a4d0e;
    background: #fff6e8;
}

.platform-comparison-row {
    display: grid;
    grid-template-columns: 230px repeat(var(--comparison-columns, 3), minmax(245px, 1fr));
    border-bottom: 1px solid var(--border-light);
}

.platform-comparison-row:last-child {
    border-bottom: 0;
}

.platform-comparison-row-label,
.platform-comparison-cell {
    min-width: 0;
    padding: 16px;
}

.platform-comparison-row-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-primary);
    background: #fbfcfe;
    font-size: 13px;
    font-weight: 900;
}

.platform-comparison-row-label-copy {
    padding-top: 2px;
}

.platform-comparison-metric-pin {
    appearance: none;
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 28px;
    flex: 0 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #8792a5;
    background: #fff;
    cursor: pointer;
}

.platform-comparison-metric-pin.is-pinned {
    color: #b46a15;
    border-color: rgba(180,106,21,.28);
    background: #fff8ed;
}

.platform-comparison-cell {
    border-left: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.7;
}

.platform-comparison-cell a {
    color: var(--accent-primary);
    font-weight: 700;
}

.platform-comparison-cell strong {
    color: var(--text-primary);
}

.platform-comparison-score-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 7px;
}

.platform-comparison-score {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 900;
}

.platform-comparison-lead-badge {
    display: inline-flex;
    align-items: center;
    min-height: 23px;
    padding: 0 8px;
    border-radius: 999px;
    color: #08746b;
    background: rgba(15,118,110,.1);
    font-size: 10px;
    font-weight: 900;
}

.platform-comparison-status {
    display: inline-flex;
    align-items: center;
    min-height: 27px;
    padding: 0 9px;
    border-radius: 7px;
    font-size: 11px;
    font-weight: 900;
}

.platform-comparison-status--open { color: #08746b; background: rgba(15,118,110,.1); }
.platform-comparison-status--limited { color: #a45f0c; background: rgba(245,158,11,.13); }
.platform-comparison-status--paused,
.platform-comparison-status--delisted { color: #8b3c37; background: rgba(239,68,68,.1); }

.platform-comparison-model-list {
    margin-top: 6px;
    color: var(--text-tertiary);
    font-size: 12px;
}

.platform-comparison-no-differences {
    padding: 34px 20px;
    color: var(--text-tertiary);
    text-align: center;
}

.platform-comparison-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 26px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: #101725;
    box-shadow: var(--shadow-md);
    color: #fff;
}

.platform-comparison-footer strong {
    display: block;
    margin-bottom: 6px;
    font-size: 17px;
}

.platform-comparison-footer p {
    margin: 0;
    color: #bac4d4;
    line-height: 1.6;
}

.platform-comparison-footer .platform-comparison-primary-link {
    flex: 0 0 auto;
    color: #101725;
    background: #fff;
}

@media (max-width: 900px) {
    .platform-comparison-summary-grid {
        grid-template-columns: 1fr;
    }

    .platform-comparison-summary-card {
        min-height: 0;
    }
}

@media (max-width: 720px) {
    .platform-catalog-intro-row,
    .platform-comparison-hero,
    .platform-comparison-section-heading,
    .platform-comparison-toolbar,
    .platform-comparison-footer {
        align-items: stretch;
        flex-direction: column;
    }

    .platform-compare-launcher {
        align-self: flex-start;
    }

    .platform-comparison-page {
        padding: 14px 12px 40px;
    }

    .platform-comparison-hero {
        padding: 23px 20px;
    }

    .platform-comparison-hero .platform-comparison-secondary-btn {
        align-self: flex-start;
    }

    .platform-comparison-summary,
    .platform-comparison-details {
        padding: 18px 14px;
    }

    .platform-comparison-section-heading > p {
        text-align: left;
    }

    .platform-comparison-selection-wrap {
        overflow-x: auto;
    }

    .platform-comparison-selection {
        min-width: calc(var(--comparison-columns, 2) * 220px);
    }

    .platform-compare-picker {
        align-items: end;
        padding: 0;
    }

    .platform-compare-picker-dialog {
        width: 100%;
        max-height: 90vh;
        border-radius: 18px 18px 0 0;
    }

    .platform-compare-picker-header,
    .platform-compare-picker-tools,
    .platform-compare-picker-footer {
        padding-left: 18px;
        padding-right: 18px;
    }

    .platform-compare-picker-list {
        grid-template-columns: 1fr;
        padding-left: 18px;
        padding-right: 18px;
    }

    .platform-compare-picker-footer {
        align-items: stretch;
        flex-direction: column;
    }

    .platform-comparison-footer .platform-comparison-primary-link {
        align-self: flex-start;
    }
}