:root {
    --bg: #f7f8fa;
    --surface: #ffffff;
    --surface-soft: #f4f6fb;
    --text: #111827;
    --muted: #6b7280;
    --line: #e5e7eb;
    --line-strong: #d1d5db;
    --primary: #0f172a;
    --primary-soft: #eef2ff;
    --accent: #dbeafe;
    --warm: #fff1e8;
    --success: #15803d;
    --danger: #b91c1c;
    --shadow: 0 24px 70px rgba(15, 23, 42, 0.08);
    --radius: 24px;
    --radius-sm: 16px;
    --container: 1240px;
    --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background:
        radial-gradient(circle at top left, rgba(219, 234, 254, 0.55), transparent 32%),
        radial-gradient(circle at bottom right, rgba(255, 241, 232, 0.72), transparent 26%),
        linear-gradient(180deg, #fcfcfd 0%, #f7f8fa 100%);
    color: var(--text);
    font-family: var(--font);
}

a {
    color: inherit;
    text-decoration: none;
}

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

button,
input,
textarea,
select {
    font: inherit;
}

.site-shell {
    min-height: 100vh;
}

.topbar {
    width: min(var(--container), calc(100% - 40px));
    margin: 24px auto 0;
    padding: 18px 22px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    position: sticky;
    top: 16px;
    z-index: 30;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a, #1f2937);
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.brand-text strong {
    font-size: 16px;
}

.brand-text small {
    color: var(--muted);
}

.topnav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.topnav a,
.dashboard-menu a,
.workspace-menu a {
    padding: 10px 14px;
    border-radius: 999px;
    color: var(--muted);
    transition: all 0.2s ease;
}

.topnav a.active,
.topnav a:hover,
.dashboard-menu a.active,
.dashboard-menu a:hover,
.workspace-menu a.active,
.workspace-menu a:hover {
    background: var(--primary);
    color: #fff;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.page-content {
    width: min(var(--container), calc(100% - 40px));
    margin: 24px auto 60px;
}

.footer {
    width: min(var(--container), calc(100% - 40px));
    margin: 0 auto 24px;
    padding: 28px 32px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.footer p {
    margin: 8px 0 0;
    color: var(--muted);
}

.footer-links {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.hero {
    display: grid;
    grid-template-columns: 1.25fr 0.95fr;
    gap: 28px;
    padding: 28px 0 10px;
}

.hero-copy,
.hero-panel,
.page-hero,
.panel,
.info-card,
.prompt-card,
.work-card,
.pricing-card,
.community-card,
.auth-card,
.stat-card,
.post-main,
.post-side .panel,
.task-card,
.row-card,
.simple-item,
.plan-compact-item {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow);
}

.hero-copy {
    border-radius: 36px;
    padding: 48px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.9)),
        linear-gradient(120deg, rgba(219,234,254,0.7), rgba(255,241,232,0.7));
}

.hero-copy h1,
.page-hero h1,
.workspace-header h1,
.dashboard-header h1,
.post-main h1 {
    margin: 14px 0 16px;
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.hero-copy p,
.page-hero p,
.workspace-header p {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.8;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero-actions,
.form-actions,
.post-actions,
.chip-row,
.meta-row,
.pill-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.hero-actions {
    margin-top: 28px;
}

.primary-btn,
.ghost-btn,
.text-link {
    border: none;
    border-radius: 999px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.primary-btn,
.ghost-btn {
    padding: 13px 22px;
    font-weight: 600;
}

.primary-btn {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 14px 24px rgba(15, 23, 42, 0.14);
}

.ghost-btn {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--line);
}

.text-link {
    color: var(--text);
    font-weight: 600;
}

.primary-btn:hover,
.ghost-btn:hover {
    transform: translateY(-1px);
}

.hero-stats {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.hero-stats div {
    padding: 18px;
    border-radius: 20px;
    background: rgba(247, 248, 250, 0.96);
    border: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-stats strong {
    font-size: 18px;
}

.hero-stats span {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.6;
}

.hero-panel {
    border-radius: 36px;
    padding: 24px;
    background: linear-gradient(160deg, #ffffff, #f4f8ff);
}

.hero-card {
    height: 100%;
    padding: 26px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.96), rgba(30, 41, 59, 0.92));
    color: #fff;
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.hero-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hero-card-header span,
.hero-preview span {
    color: rgba(255, 255, 255, 0.72);
}

.hero-flow {
    display: grid;
    gap: 12px;
}

.flow-step {
    padding: 15px 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.72);
}

.flow-step.active {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.hero-preview {
    margin-top: auto;
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.08);
}

.hero-preview p {
    margin: 10px 0 0;
    line-height: 1.7;
}

.section-block {
    margin-top: 30px;
    padding: 8px 0;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 18px;
    margin-bottom: 22px;
}

.section-title h2 {
    margin: 10px 0 0;
    font-size: 30px;
    letter-spacing: -0.03em;
}

.capability-grid,
.card-grid,
.pricing-grid,
.work-grid,
.stat-grid,
.split-grid,
.workspace-grid {
    display: grid;
    gap: 20px;
}

.capability-grid {
    grid-template-columns: repeat(3, 1fr);
}

.card-grid.three,
.pricing-grid {
    grid-template-columns: repeat(3, 1fr);
}

.work-grid {
    grid-template-columns: repeat(4, 1fr);
}

.capability-card,
.info-card,
.prompt-card,
.pricing-card,
.work-card,
.community-card,
.page-hero,
.auth-card,
.stat-card,
.task-card,
.row-card,
.simple-item,
.plan-compact-item {
    border-radius: 28px;
    padding: 24px;
}

.capability-card {
    background:
        linear-gradient(180deg, rgba(255,255,255,0.97), rgba(255,255,255,0.92)),
        linear-gradient(120deg, rgba(219,234,254,0.56), rgba(255,241,232,0.72));
    border: 1px solid rgba(255,255,255,0.8);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

.capability-card:hover {
    transform: translateY(-2px);
}

.capability-card h3,
.info-card h3,
.prompt-card h3,
.pricing-card h3 {
    margin: 18px 0 10px;
    font-size: 24px;
}

.capability-card p,
.info-card p,
.prompt-card p,
.pricing-card p,
.community-info p,
.empty-state p {
    color: var(--muted);
    line-height: 1.8;
    margin: 0;
}

.capability-tag,
.chip,
.pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 13px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    color: var(--text);
}

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

.chip-soft {
    background: var(--accent);
    border-color: transparent;
}

.meta-row,
.meta-stack,
.task-card-top span,
.community-info .meta-row,
.post-meta,
.dashboard-profile span,
.simple-item span,
.row-card span,
.plan-compact-item span,
.dashboard-header span {
    color: var(--muted);
}

.meta-stack {
    display: grid;
    gap: 8px;
}

.prompt-card pre {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    padding: 18px;
    border-radius: 18px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    font-family: var(--font);
    color: var(--text);
    line-height: 1.8;
}

.work-card {
    padding: 14px;
}

.work-media {
    aspect-ratio: 4 / 5;
    border-radius: 20px;
    overflow: hidden;
    background: var(--surface-soft);
    display: flex;
    align-items: center;
    justify-content: center;
}

.work-media img,
.community-media img,
.task-media img,
.post-media-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.work-info {
    padding: 14px 10px 4px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pricing-card .price {
    margin: 16px 0;
    font-size: 34px;
    font-weight: 700;
}

.feature-list {
    padding-left: 18px;
    margin: 16px 0;
    color: var(--muted);
    line-height: 1.8;
}

.page-hero {
    padding: 36px;
    margin-top: 8px;
}

.page-hero.compact h1 {
    font-size: clamp(30px, 4vw, 46px);
}

.auth-body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.auth-wrap {
    width: min(1120px, 100%);
}

.auth-brand {
    margin-bottom: 22px;
}

.auth-card {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    overflow: hidden;
}

.auth-side {
    padding: 48px;
    background:
        linear-gradient(145deg, rgba(15,23,42,0.95), rgba(31,41,55,0.92)),
        linear-gradient(180deg, rgba(219,234,254,0.4), rgba(255,241,232,0.2));
    color: #fff;
}

.auth-side p {
    color: rgba(255, 255, 255, 0.76);
    line-height: 1.9;
}

.auth-form,
.admin-form,
.comment-form {
    display: grid;
    gap: 16px;
}

.auth-form {
    padding: 44px;
}

label {
    display: grid;
    gap: 10px;
}

label span {
    font-size: 14px;
    color: var(--muted);
}

input,
textarea,
select {
    width: 100%;
    padding: 15px 16px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
    border-color: rgba(15, 23, 42, 0.3);
    box-shadow: 0 0 0 4px rgba(15, 23, 42, 0.05);
}

textarea {
    resize: vertical;
}

.wide {
    width: 100%;
}

.auth-foot,
.inline-form {
    display: inline-flex;
    gap: 10px;
    align-items: center;
}

.demo-hint {
    font-size: 13px;
    color: var(--muted);
    background: var(--surface-soft);
    border-radius: 16px;
    padding: 14px 16px;
}

.workspace {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 24px;
}

.workspace-nav,
.dashboard-nav {
    position: sticky;
    top: 110px;
    align-self: start;
    padding: 24px;
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow);
}

.workspace-menu,
.dashboard-menu {
    display: grid;
    gap: 8px;
    margin-top: 20px;
}

.workspace-menu a,
.dashboard-menu a {
    padding: 14px 16px;
    border-radius: 20px;
    background: var(--surface-soft);
    display: grid;
    gap: 5px;
}

.workspace-menu strong {
    font-size: 15px;
}

.workspace-menu span {
    font-size: 12px;
    line-height: 1.5;
}

.workspace-main,
.dashboard-main {
    display: grid;
    gap: 20px;
}

.workspace-header,
.dashboard-header {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start;
}

.workspace-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(110px, 1fr));
    gap: 14px;
}

.workspace-summary div {
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.workspace-summary strong {
    display: block;
    font-size: 22px;
    margin-bottom: 8px;
}

.workspace-grid {
    grid-template-columns: 1.25fr 0.85fr;
}

.panel {
    padding: 24px;
    border-radius: 28px;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 18px;
}

.panel-head h3 {
    margin: 0;
    font-size: 22px;
}

.panel-head span {
    color: var(--muted);
    font-size: 14px;
}

.generator-form {
    display: grid;
    gap: 16px;
}

.form-row.two {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.upload-card {
    padding: 18px;
    border-radius: 22px;
    background: var(--surface-soft);
    border: 1px dashed var(--line-strong);
    display: grid;
    gap: 14px;
}

.upload-card-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    color: var(--muted);
}

.upload-preview {
    min-height: 58px;
    padding: 16px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--muted);
    word-break: break-all;
}

.prompt-list,
.task-list,
.comment-list,
.simple-list,
.table-like,
.plan-compact-list {
    display: grid;
    gap: 14px;
}

.prompt-item {
    padding: 18px;
    text-align: left;
    border-radius: 20px;
    border: 1px solid var(--line);
    background: #fff;
    display: grid;
    gap: 8px;
    cursor: pointer;
}

.prompt-item span {
    color: var(--muted);
    line-height: 1.6;
}

.prompt-item-create {
    background: linear-gradient(180deg, #ffffff, #f7f8fa);
}

.task-card,
.row-card,
.simple-item,
.plan-compact-item {
    display: grid;
    gap: 12px;
}

.task-card-top {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
}

.task-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.task-media {
    min-height: 180px;
    border-radius: 22px;
    overflow: hidden;
    background: var(--surface-soft);
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-placeholder,
.work-placeholder {
    color: var(--muted);
    font-weight: 600;
}

.task-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.community-feed {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.community-card {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 18px;
}

.community-media {
    border-radius: 22px;
    overflow: hidden;
    background: var(--surface-soft);
    min-height: 240px;
}

.community-info {
    display: grid;
    align-content: center;
    gap: 14px;
}

.community-info h3,
.post-main h1 {
    margin: 0;
}

.post-layout {
    display: grid;
    grid-template-columns: 1.35fr 0.75fr;
    gap: 24px;
}

.post-main,
.post-side .panel {
    border-radius: 30px;
    padding: 28px;
}

.post-media-frame {
    margin: 24px 0;
    border-radius: 28px;
    overflow: hidden;
    background: var(--surface-soft);
}

.post-content {
    line-height: 1.95;
    color: #374151;
}

.comment-item {
    padding: 18px;
    border-radius: 20px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    display: grid;
    gap: 8px;
}

.comment-item span,
.comment-item p {
    color: var(--muted);
    margin: 0;
}

.dashboard-shell {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
}

.dashboard-profile {
    display: flex;
    align-items: center;
    gap: 14px;
}

.avatar-circle {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    background: var(--primary-soft);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary);
}

.avatar-circle.dark {
    background: var(--primary);
    color: #fff;
}

.stat-grid {
    grid-template-columns: repeat(4, 1fr);
}

.stat-card {
    display: grid;
    gap: 8px;
}

.stat-card strong {
    font-size: 32px;
}

.split-grid {
    grid-template-columns: repeat(2, 1fr);
}

.wide-right {
    grid-template-columns: 1.2fr 0.8fr;
}

.panel-narrow {
    max-width: 760px;
}

.row-card {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    align-items: center;
}

.row-card.stacked {
    grid-template-columns: 1.6fr 1fr 1fr;
}

.simple-item,
.plan-compact-item {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.plan-compact-item .ghost-btn {
    padding: 10px 16px;
}

.flash {
    width: min(var(--container), calc(100% - 40px));
    margin: 18px auto 0;
    padding: 16px 20px;
    border-radius: 20px;
    font-weight: 600;
}

.flash-success {
    background: rgba(22, 163, 74, 0.12);
    color: var(--success);
    border: 1px solid rgba(22, 163, 74, 0.14);
}

.flash-error {
    background: rgba(220, 38, 38, 0.10);
    color: var(--danger);
    border: 1px solid rgba(220, 38, 38, 0.12);
}

.empty-state {
    padding: 80px 40px;
    border-radius: 32px;
    background: rgba(255, 255, 255, 0.92);
    text-align: center;
    box-shadow: var(--shadow);
}

.toast-stack {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: grid;
    gap: 12px;
    z-index: 50;
}

.toast {
    min-width: 260px;
    max-width: 360px;
    padding: 16px 18px;
    border-radius: 18px;
    box-shadow: var(--shadow);
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(255,255,255,0.88);
}

.toast.success {
    border-color: rgba(22, 163, 74, 0.22);
}

.toast.error {
    border-color: rgba(220, 38, 38, 0.18);
}

@media (max-width: 1100px) {
    .hero,
    .workspace,
    .dashboard-shell,
    .post-layout,
    .workspace-grid,
    .split-grid,
    .wide-right,
    .auth-card,
    .community-card {
        grid-template-columns: 1fr;
    }

    .topbar,
    .footer,
    .workspace-nav,
    .dashboard-nav {
        position: static;
    }

    .capability-grid,
    .card-grid.three,
    .pricing-grid,
    .work-grid,
    .community-feed,
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .row-card,
    .row-card.stacked {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .topbar,
    .footer,
    .hero-copy,
    .hero-panel,
    .page-hero,
    .panel,
    .auth-form,
    .auth-side,
    .post-main,
    .post-side .panel,
    .community-card,
    .pricing-card,
    .info-card,
    .prompt-card,
    .capability-card {
        padding: 20px;
    }

    .topbar {
        width: calc(100% - 24px);
        margin-top: 12px;
        border-radius: 22px;
    }

    .page-content,
    .footer,
    .flash {
        width: calc(100% - 24px);
    }

    .hero-stats,
    .capability-grid,
    .card-grid.three,
    .pricing-grid,
    .work-grid,
    .community-feed,
    .stat-grid,
    .form-row.two {
        grid-template-columns: 1fr;
    }

    .topnav,
    .topbar-actions {
        width: 100%;
    }

    .workspace-summary {
        grid-template-columns: 1fr 1fr;
    }
}