:root {
    --bg: #fff7f5;
    --panel: #ffffff;
    --text: #241615;
    --muted: #725f5b;
    --brand: #e9363f;
    --brand-dark: #a91f28;
    --line: #f1d7d2;
    --soft: #ffe8e3;
    --shadow: 0 18px 45px rgba(112, 32, 32, 0.12);
    --radius: 24px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, var(--bg), #ffffff 38%);
    line-height: 1.72;
}

a {
    color: var(--brand-dark);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 247, 245, 0.92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 20px 10px;
    display: flex;
    align-items: center;
    gap: 22px;
    justify-content: space-between;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--text);
}

.brand img {
    border-radius: 15px;
    box-shadow: 0 8px 18px rgba(233, 54, 63, 0.22);
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.main-nav a {
    padding: 8px 12px;
    border-radius: 999px;
    color: var(--text);
    font-weight: 700;
    font-size: 0.94rem;
}

.main-nav a[aria-current="page"],
.main-nav a:hover {
    background: var(--brand);
    color: #fff;
    text-decoration: none;
}

.search-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px 14px;
}

.search-shell form {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    align-items: center;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 10px 8px 16px;
    box-shadow: 0 8px 28px rgba(126, 36, 36, 0.08);
}

.search-shell label {
    font-weight: 800;
    color: var(--brand-dark);
}

.search-shell input {
    border: 0;
    outline: 0;
    font-size: 1rem;
    background: transparent;
    min-width: 0;
}

.search-shell button,
.btn,
.share-button {
    border: 0;
    border-radius: 999px;
    padding: 11px 18px;
    font-weight: 800;
    cursor: pointer;
}

.search-shell button,
.btn.primary,
.share-button {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 10px 24px rgba(233, 54, 63, 0.24);
}

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

.search-shell p {
    margin: 6px 4px 0;
    color: var(--muted);
    font-size: 0.9rem;
}

main {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px 54px;
}

.breadcrumbs {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 18px 0 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.section,
.section-tight {
    margin-top: 34px;
}

.section {
    padding: 42px;
    background: rgba(255, 255, 255, 0.74);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero,
.sub-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
    gap: 26px;
    align-items: center;
    padding: 42px;
    background: linear-gradient(135deg, #fff, #ffe5df);
    border: 1px solid var(--line);
    border-radius: 32px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.sub-hero {
    display: block;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--brand-dark);
    font-weight: 900;
    letter-spacing: 0.03em;
}

h1,
h2,
h3 {
    line-height: 1.25;
    margin: 0 0 12px;
}

h1 {
    font-size: clamp(2.1rem, 5vw, 4.6rem);
    letter-spacing: -0.05em;
}

h2 {
    font-size: clamp(1.55rem, 3vw, 2.4rem);
}

h3 {
    font-size: 1.18rem;
}

.hero-copy p,
.sub-hero p,
.section-heading p,
.split-section p {
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.hero-panel {
    background: var(--panel);
    padding: 16px;
    border-radius: 28px;
    border: 1px solid var(--line);
}

.hero-panel img {
    border-radius: 22px;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.hero-panel-content {
    padding: 18px 8px 4px;
}

.hero-panel li,
.feature-card li,
.quality-box li {
    margin: 7px 0;
}

.section-heading {
    max-width: 780px;
    margin-bottom: 24px;
}

.card-grid,
.feature-grid,
.tip-grid,
.help-grid,
.review-grid,
.video-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature-card,
.review-card,
.contact-cards article,
.tip-grid article,
.help-grid article,
.scenario-list article,
.quality-box,
.step-card,
.timeline-item {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 10px 24px rgba(126, 36, 36, 0.06);
}

.feature-icon,
.pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 46px;
    min-height: 32px;
    border-radius: 999px;
    background: var(--soft);
    color: var(--brand-dark);
    font-weight: 900;
    margin-bottom: 12px;
}

.feature-card p,
.review-card p,
.contact-cards p,
.tip-grid p,
.help-grid p,
.video-card p,
.step-card p,
.timeline-item p,
.scenario-list p {
    color: var(--muted);
    margin-bottom: 0;
}

.split-section {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
    gap: 22px;
    align-items: start;
}

.scenario-list,
.tip-stack {
    display: grid;
    gap: 14px;
}

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

.video-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 14px 36px rgba(126, 36, 36, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.video-card:hover,
.video-card.is-hovered {
    transform: translateY(-4px);
    box-shadow: 0 18px 44px rgba(126, 36, 36, 0.16);
}

.video-card figure {
    position: relative;
    margin: 0;
    background: #2b1112;
}

.video-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.video-card video {
    display: none;
}

.play-badge {
    position: absolute;
    inset: 50% auto auto 50%;
    transform: translate(-50%, -50%) scale(0.92);
    width: 62px;
    height: 62px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    background: rgba(233, 54, 63, 0.86);
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    font-size: 1.4rem;
    padding-left: 4px;
}

.video-card:hover .play-badge,
.video-card.is-hovered .play-badge {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.video-card figcaption {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 10px;
    padding: 8px 10px;
    border-radius: 14px;
    color: #fff;
    background: rgba(0, 0, 0, 0.52);
    font-size: 0.78rem;
}

.video-card-body {
    padding: 20px;
}

.metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 14px 0;
}

.metrics span,
.tag-row span {
    border-radius: 999px;
    padding: 6px 9px;
    background: var(--soft);
    color: var(--brand-dark);
    font-weight: 800;
    font-size: 0.86rem;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.step-list,
.timeline {
    display: grid;
    gap: 16px;
}

.step-card {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 14px;
    align-items: start;
}

.step-card strong {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: var(--brand);
    color: #fff;
    font-size: 1.1rem;
}

.timeline-item {
    border-left: 5px solid var(--brand);
}

.timeline-item > span,
.contact-cards span,
.review-card span {
    color: var(--brand-dark);
    font-weight: 800;
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-list details {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px 20px;
}

.faq-list summary {
    cursor: pointer;
    font-weight: 900;
    color: var(--text);
}

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

.stars {
    color: var(--brand);
    font-weight: 900;
    margin-bottom: 10px;
}

.contact-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    color: #fff;
}

.contact-band p,
.contact-band .eyebrow {
    color: #fff;
}

.contact-band .btn.primary {
    background: #fff;
    color: var(--brand-dark);
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1fr);
    gap: 22px;
}

.contact-cards {
    display: grid;
    gap: 14px;
}

.contact-form {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 10px 24px rgba(126, 36, 36, 0.06);
}

.contact-form label {
    display: grid;
    gap: 7px;
    font-weight: 800;
    margin-bottom: 14px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 12px 14px;
    font: inherit;
    background: #fffafa;
}

.module-json-note {
    background: #fff;
}

.site-footer {
    background: #241615;
    color: #fff7f5;
    padding: 42px 20px 30px;
}

.footer-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 26px;
}

.footer-brand,
.site-footer a {
    color: #fff;
}

.site-footer nav {
    display: grid;
    gap: 10px;
}

.site-footer p {
    color: #f6d8d3;
}

.copyright {
    max-width: 1180px;
    margin: 28px auto 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    padding-top: 18px;
    font-size: 0.92rem;
}

@media (max-width: 980px) {
    .header-inner,
    .hero,
    .split-section,
    .contact-layout,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        display: grid;
    }

    .main-nav {
        justify-content: flex-start;
    }

    .card-grid,
    .feature-grid,
    .tip-grid,
    .help-grid,
    .review-grid,
    .video-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    .search-shell form {
        grid-template-columns: 1fr;
        border-radius: 22px;
    }

    .hero,
    .section,
    .sub-hero {
        padding: 24px;
        border-radius: 22px;
    }

    .card-grid,
    .feature-grid,
    .tip-grid,
    .help-grid,
    .review-grid,
    .video-grid {
        grid-template-columns: 1fr;
    }

    .step-card {
        grid-template-columns: 1fr;
    }

    .contact-band {
        display: block;
    }

    h1 {
        font-size: 2.25rem;
    }
}