:root {
    --bg: #fff6f8;
    --bg-soft: #fff0f4;
    --panel: rgba(255, 255, 255, 0.92);
    --panel-strong: #ffffff;
    --text-main: #301721;
    --text-secondary: #7a5462;
    --line: rgba(235, 78, 133, 0.14);
    --primary: #e63b72;
    --primary-deep: #bf2457;
    --primary-soft: rgba(230, 59, 114, 0.12);
    --accent: #ff8a65;
    --success: #2faa67;
    --danger: #d94b68;
    --shadow: 0 24px 60px rgba(204, 63, 111, 0.14);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, rgba(255, 120, 160, 0.18), transparent 26%),
        radial-gradient(circle at top right, rgba(255, 155, 120, 0.15), transparent 22%),
        linear-gradient(180deg, #fff8fa 0%, #fff1f5 45%, #fff8fb 100%);
    line-height: 1.7;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 92%);
}

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

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

button {
    font: inherit;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.top-notice {
    position: relative;
    z-index: 30;
    background: linear-gradient(90deg, #d91f5c, #f14a84 48%, #ff7f6c);
    color: #fff;
}

.notice-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 11px 0;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
}

.notice-inner a {
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 25;
    backdrop-filter: blur(18px);
    background: rgba(255, 249, 251, 0.82);
    border-bottom: 1px solid rgba(235, 78, 133, 0.1);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand img {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    object-fit: cover;
    box-shadow: 0 12px 28px rgba(214, 62, 112, 0.2);
}

.brand strong {
    display: block;
    font-size: 19px;
}

.brand span {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    position: relative;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.nav-cta,
.primary-btn,
.plan-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.nav-cta,
.primary-btn,
.plan-btn,
.plan-btn-highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-deep));
    color: #fff;
    box-shadow: 0 16px 30px rgba(216, 44, 101, 0.22);
}

.nav-cta {
    padding: 12px 18px;
    font-size: 14px;
}

.primary-btn,
.secondary-btn {
    padding: 15px 26px;
    min-width: 190px;
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.68);
    color: var(--primary-deep);
    border: 1px solid rgba(230, 59, 114, 0.18);
    box-shadow: 0 14px 30px rgba(216, 44, 101, 0.08);
}

.light-btn {
    background: #fff;
    color: var(--primary-deep);
}

.nav-cta:hover,
.primary-btn:hover,
.secondary-btn:hover,
.plan-btn:hover,
.plan-btn-highlight:hover {
    transform: translateY(-2px);
}

.burger {
    display: none;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: 14px;
    background: rgba(230, 59, 114, 0.08);
    cursor: pointer;
}

.burger span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 5px auto;
    background: var(--text-main);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero {
    padding: 44px 0 28px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: 28px;
    align-items: start;
}

.hero-content,
.hero-preview-card,
.hero-contact-card,
.hero-guide-card,
.comparison-panel,
.feature-card,
.gallery-item,
.plan-card,
.step-card,
.wechat-card {
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.hero-content {
    padding: 42px;
    border-radius: var(--radius-xl);
    background:
        radial-gradient(circle at top right, rgba(255, 138, 101, 0.18), transparent 24%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(255, 241, 246, 0.9));
}

.hero-badge,
.section-tag,
.plan-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.hero h1 {
    margin-top: 18px;
    font-size: clamp(32px, 4.6vw, 56px);
    line-height: 1.15;
}

.hero-text {
    margin-top: 18px;
    max-width: 640px;
    color: var(--text-secondary);
    font-size: 17px;
}

.hero-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 28px;
}

.hero-actions .primary-btn,
.hero-actions .secondary-btn {
    width: 100%;
    min-width: 0;
    padding-inline: 16px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 28px;
}

.metric-card {
    padding: 18px 18px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(230, 59, 114, 0.1);
}

.metric-card strong {
    display: block;
    font-size: 22px;
    color: var(--primary-deep);
}

.metric-card span {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 14px;
}

.hero-visual {
    display: grid;
    gap: 18px;
}

.hero-preview-card {
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--panel-strong);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.hero-preview-card img {
    width: 100%;
    max-height: 360px;
    object-fit: cover;
}

.hero-preview-caption {
    padding: 20px 22px 22px;
}

.hero-preview-caption strong {
    display: block;
    font-size: 20px;
}

.hero-preview-caption span {
    display: block;
    margin-top: 8px;
    color: var(--text-secondary);
}

.hero-contact-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #ffe7ef, #fff7fa);
}

.hero-guide-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.86);
}

.hero-contact-card span,
.wechat-card span {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
}

.hero-contact-card strong,
.wechat-card strong {
    display: block;
    margin-top: 8px;
    font-size: 30px;
    color: var(--primary-deep);
    word-break: break-word;
}

.hero-contact-card p,
.wechat-card p,
.section-heading p,
.comparison-note,
.step-card p,
.feature-copy p,
.plan-list li,
.contact-grid p,
.contact-banner p {
    color: var(--text-secondary);
}

.hero-guide-card h3 {
    font-size: 20px;
}

.hero-guide-list {
    list-style: none;
    margin-top: 16px;
    display: grid;
    gap: 12px;
}

.hero-guide-list li {
    position: relative;
    padding-left: 24px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.hero-guide-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary);
    font-weight: 800;
}

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

.section-tint {
    padding: 52px 0 0;
}

.section-heading {
    margin-bottom: 22px;
}

.section-heading.narrow {
    max-width: 820px;
}

.section-heading h2,
.contact-grid h2,
.contact-banner h2 {
    margin-top: 14px;
    font-size: clamp(28px, 3.4vw, 42px);
    line-height: 1.2;
}

.section-heading p,
.contact-grid p,
.contact-banner p {
    margin-top: 12px;
    font-size: 16px;
}

.feature-grid,
.gallery-grid,
.plan-grid,
.step-grid {
    display: grid;
    gap: 20px;
}

.feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.audience-grid,
.pain-grid,
.download-grid,
.demo-grid,
.license-grid {
    display: grid;
    gap: 20px;
}

.audience-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pain-grid,
.download-grid,
.demo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.info-card,
.pain-card,
.download-card,
.video-card,
.demo-copy {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.info-card h3,
.pain-card h3,
.download-card h3,
.demo-copy h3 {
    font-size: 21px;
}

.info-card p,
.pain-card p,
.download-card p,
.demo-copy p {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 15px;
}

.pain-card {
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(255, 241, 246, 0.88));
}

.download-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.download-card .primary-btn {
    margin-top: 20px;
}

.download-card-note {
    background:
        radial-gradient(circle at top right, rgba(255, 138, 101, 0.14), transparent 24%),
        linear-gradient(145deg, #fff8fb, #fff2f6);
}

.video-card {
    overflow: hidden;
    padding: 0;
    background: #1f1117;
}

.video-card video {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 360px;
    background: #12080c;
}

.video-card iframe {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 360px;
    border: 0;
    background: #12080c;
}

.demo-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.demo-copy .secondary-btn {
    margin-top: 20px;
    width: fit-content;
}

.feature-card {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--panel);
}

.feature-card img {
    width: 84px;
    height: 84px;
    object-fit: cover;
    border-radius: 18px;
    flex-shrink: 0;
}

.feature-copy h3 {
    font-size: 20px;
}

.feature-copy p {
    margin-top: 8px;
    font-size: 15px;
}

.comparison-panel {
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--panel-strong);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 18px 22px;
    border-bottom: 1px solid rgba(235, 78, 133, 0.1);
    text-align: center;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    width: 52%;
}

.comparison-table thead th {
    background: linear-gradient(135deg, rgba(230, 59, 114, 0.1), rgba(255, 138, 101, 0.08));
    color: var(--text-main);
    font-size: 16px;
}

.status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    font-size: 18px;
    font-weight: 700;
}

.status.yes {
    background: rgba(47, 170, 103, 0.12);
    color: var(--success);
}

.status.no {
    background: rgba(217, 75, 104, 0.12);
    color: var(--danger);
}

.comparison-note {
    padding: 20px 22px 24px;
    font-size: 15px;
}

.gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.gallery-item {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: #fff;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.gallery-item p {
    padding: 15px 16px 18px;
    font-weight: 700;
    color: var(--text-main);
}

.plan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
}

.plan-card {
    display: flex;
    flex-direction: column;
    padding: 28px;
    border-radius: var(--radius-xl);
    background: var(--panel-strong);
    height: 100%;
}

.plan-card-auth {
    background:
        radial-gradient(circle at top right, rgba(255, 138, 101, 0.2), transparent 24%),
        linear-gradient(145deg, #fff8fb, #ffeef4);
}

.plan-head h3 {
    margin-top: 18px;
    font-size: 28px;
}

.plan-price {
    margin-top: 10px;
    font-size: 38px;
    font-weight: 800;
    color: var(--primary-deep);
}

.plan-list {
    list-style: none;
    margin-top: 20px;
}

.license-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 20px;
}

.license-item {
    padding: 18px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(230, 59, 114, 0.12);
    text-align: center;
}

.license-item span {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
}

.license-item strong {
    display: block;
    margin-top: 8px;
    color: var(--primary-deep);
    font-size: 26px;
}

.plan-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 12px;
}

.plan-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary);
    font-weight: 800;
}

.plan-btn {
    width: 100%;
    margin-top: auto;
    padding: 15px 22px;
}

.step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.step-card {
    padding: 26px;
    border-radius: var(--radius-lg);
    background: var(--panel);
}

.step-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    margin-bottom: 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(230, 59, 114, 0.14), rgba(255, 138, 101, 0.18));
    color: var(--primary-deep);
    font-weight: 800;
}

.step-card h3 {
    font-size: 22px;
}

.step-card p {
    margin-top: 10px;
}

.contact-banner {
    padding: 52px 0 60px;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
    gap: 24px;
    padding: 34px;
    border-radius: 32px;
    background: linear-gradient(135deg, #d91f5c, #ef4a83 48%, #ff7a65);
    color: #fff;
    box-shadow: 0 30px 60px rgba(211, 47, 102, 0.25);
}

.purchase-panel {
    margin-top: 24px;
}

.purchase-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.purchase-steps {
    list-style: none;
    margin-top: 22px;
    display: grid;
    gap: 16px;
}

.purchase-steps li {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 14px;
    align-items: start;
    color: rgba(255, 255, 255, 0.96);
    font-size: 17px;
    line-height: 1.75;
}

.purchase-steps strong {
    color: #fff;
}

.purchase-step-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.24);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.section-tag-light {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.contact-banner p {
    max-width: 720px;
    color: rgba(255, 255, 255, 0.86);
}

.wechat-card {
    padding: 28px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.92);
}

.wechat-card p {
    margin-top: 12px;
}

.wechat-card .primary-btn {
    margin-top: 18px;
}

.site-footer {
    padding: 26px 0 40px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 28px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(235, 78, 133, 0.1);
}

.site-footer strong {
    font-size: 18px;
}

.site-footer p {
    margin-top: 8px;
    color: var(--text-secondary);
}

.site-footer a {
    color: var(--primary-deep);
}

.floating-wechat {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 40;
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    padding: 14px 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary), var(--primary-deep));
    color: #fff;
    box-shadow: 0 18px 40px rgba(210, 44, 101, 0.3);
}

.floating-wechat span {
    font-size: 12px;
    opacity: 0.9;
}

.floating-wechat strong {
    font-size: 18px;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background: rgba(27, 10, 17, 0.82);
    backdrop-filter: blur(8px);
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: min(1100px, 96vw);
    width: 100%;
}

.lightbox-close {
    position: absolute;
    top: -18px;
    right: -6px;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: #fff;
    color: var(--primary-deep);
    font-size: 28px;
    cursor: pointer;
}

.lightbox-image {
    width: 100%;
    max-height: 84vh;
    object-fit: contain;
    border-radius: 24px;
    background: #fff;
}

.lightbox-caption {
    margin-top: 14px;
    text-align: center;
    color: #fff;
    font-size: 16px;
}

@media (max-width: 1100px) {
    .hero-grid,
    .contact-grid,
    .feature-grid,
    .gallery-grid,
    .step-grid,
    .audience-grid,
    .pain-grid,
    .download-grid,
    .demo-grid,
    .license-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .nav-cta {
        display: none;
    }

    .burger {
        display: inline-block;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 10px);
        right: 20px;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        width: min(320px, calc(100vw - 40px));
        padding: 18px;
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.96);
        border: 1px solid rgba(235, 78, 133, 0.12);
        box-shadow: 0 20px 40px rgba(204, 63, 111, 0.18);
    }

    .nav-links.active {
        display: flex;
    }

    .hero-content {
        padding: 30px;
    }

    .plan-grid,
    .feature-grid,
    .gallery-grid,
    .step-grid,
    .audience-grid,
    .pain-grid,
    .download-grid,
    .demo-grid,
    .license-grid {
        grid-template-columns: 1fr;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 16px 14px;
        font-size: 14px;
    }

    .comparison-table th:first-child,
    .comparison-table td:first-child {
        width: auto;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, 1180px);
    }

    .notice-inner {
        flex-direction: column;
        gap: 8px;
        padding: 10px 0;
    }

    .nav-shell {
        padding: 14px 0;
    }

    .brand img {
        width: 48px;
        height: 48px;
    }

    .brand strong {
        font-size: 17px;
    }

    .hero {
        padding-top: 26px;
    }

    .hero-content,
    .plan-card,
    .step-card,
    .info-card,
    .pain-card,
    .download-card,
    .demo-copy,
    .wechat-card,
    .contact-grid {
        padding: 22px;
    }

    .hero-actions {
        grid-template-columns: 1fr;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

    .primary-btn,
    .secondary-btn {
        width: 100%;
        min-width: 0;
    }

    .feature-card {
        flex-direction: column;
    }

    .gallery-item img {
        height: 190px;
    }

    .comparison-panel {
        overflow-x: auto;
    }

    .comparison-table {
        min-width: 640px;
    }

    .footer-inner {
        flex-direction: column;
        padding: 22px;
    }

    .floating-wechat {
        right: 14px;
        bottom: 14px;
        padding: 12px 14px;
    }
}