:root {
    --bg: #f7f9fc;
    --surface: #ffffff;
    --surface-soft: #eef6ff;
    --text: #152238;
    --muted: #64748b;
    --line: #e5eaf1;
    --brand: #0b73e0;
    --brand-dark: #0759b0;
    --accent: #16a085;
    --warning: #f4b740;
    --shadow: 0 18px 45px rgba(21, 34, 56, 0.09);
    --radius: 8px;
    --max: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, "Segoe UI", Arial, "Noto Sans SC", sans-serif;
    line-height: 1.6;
}

html[data-language="zh"] [data-lang="en"],
html[data-language="en"] [data-lang="zh"] {
    display: none !important;
}

[hidden] {
    display: none !important;
}

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

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px max(24px, calc((100vw - var(--max)) / 2));
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: var(--radius);
    color: white;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    font-weight: 800;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 17px;
    letter-spacing: 0;
}

.brand small {
    color: var(--muted);
    font-size: 12px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    color: #334155;
    font-size: 14px;
    font-weight: 650;
}

.site-nav a {
    white-space: nowrap;
}

.language-switcher {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f6f9fc;
}

.language-switcher button {
    min-height: 32px;
    border: 0;
    border-radius: 6px;
    padding: 0 10px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 850;
}

.language-switcher button[aria-pressed="true"] {
    color: white;
    background: var(--brand);
}

.nav-cta,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: var(--radius);
    font-weight: 750;
}

.nav-cta {
    padding: 0 16px;
    color: white;
    background: var(--brand);
}

.nav-toggle {
    display: none;
    border: 0;
    background: white;
    color: var(--text);
    font-size: 24px;
}

.hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
    gap: 28px;
    max-width: var(--max);
    margin: 0 auto;
    padding: 76px 24px 32px;
}

.hero::before {
    position: absolute;
    inset: 0 24px 88px;
    z-index: -1;
    border-radius: 0 0 36px 36px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.8) 44%, rgba(255, 255, 255, 0.26) 100%),
        url("https://images.unsplash.com/photo-1507525428034-b723cf961d3e?auto=format&fit=crop&w=1800&q=80") center/cover;
    content: "";
}

.hero-content {
    padding: 46px 0 100px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--brand);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    margin-bottom: 18px;
    font-size: clamp(38px, 6vw, 72px);
    line-height: 1.05;
    letter-spacing: 0;
}

h2 {
    font-size: clamp(28px, 3.4vw, 46px);
    line-height: 1.12;
    letter-spacing: 0;
}

.hero-copy {
    max-width: 650px;
    color: #43536a;
    font-size: 18px;
}

.hero-actions,
.summary-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.button {
    border: 1px solid transparent;
    padding: 0 20px;
    cursor: pointer;
}

.button-primary {
    color: #fff;
    background: var(--brand);
    box-shadow: 0 12px 24px rgba(11, 115, 224, 0.22);
}

.button-primary:hover,
.nav-cta:hover {
    background: var(--brand-dark);
}

.button-secondary {
    color: var(--text);
    background: var(--surface);
    border-color: var(--line);
}

.search-panel,
.booking-form,
.booking-aside,
.summary-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.search-panel {
    align-self: end;
    display: grid;
    gap: 14px;
    padding: 22px;
}

label,
fieldset {
    display: grid;
    gap: 8px;
    margin: 0;
}

label span,
legend {
    color: #526174;
    font-size: 13px;
    font-weight: 750;
}

input,
select,
textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid #d8e0ea;
    border-radius: var(--radius);
    padding: 10px 12px;
    color: var(--text);
    background: white;
    font: inherit;
}

textarea {
    resize: vertical;
}

.search-panel button,
.form-submit {
    min-height: 48px;
    border: 0;
    border-radius: var(--radius);
    color: white;
    background: var(--accent);
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: var(--max);
    margin: -8px auto 0;
    padding: 0 24px;
    gap: 1px;
}

.trust-strip div {
    padding: 22px;
    background: white;
    border: 1px solid var(--line);
}

.trust-strip strong {
    display: block;
    font-size: 30px;
}

.trust-strip span {
    color: var(--muted);
}

.section,
.booking-layout,
.summary-layout,
.final-cta {
    max-width: var(--max);
    margin: 0 auto;
    padding: 82px 24px;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 28px;
}

.section-heading.split,
.final-cta {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
}

.text-link {
    color: var(--brand);
    font-weight: 800;
}

.benefit-grid,
.product-grid,
.area-grid,
.process-grid {
    display: grid;
    gap: 18px;
}

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

.benefit-grid article,
.area-grid article,
.process-grid article {
    padding: 24px;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.benefit-grid article {
    min-height: 230px;
}

.benefit-grid h3,
.process-grid h3 {
    margin-bottom: 10px;
    font-size: 21px;
    line-height: 1.25;
}

.benefit-grid p,
.process-grid p {
    margin-bottom: 0;
    color: var(--muted);
}

.step-badge {
    display: inline-grid;
    width: 36px;
    height: 36px;
    place-items: center;
    margin-bottom: 16px;
    border-radius: var(--radius);
    color: white;
    background: var(--text);
    font-weight: 850;
}

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

.product-card {
    overflow: hidden;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 10px 28px rgba(21, 34, 56, 0.07);
}

.product-image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.product-image img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.6s ease;
}

.product-image img.is-active {
    opacity: 1;
}

.product-card:hover img.is-active {
    transform: scale(1.04);
}

.product-image span {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 10px;
    border-radius: var(--radius);
    background: white;
    color: var(--brand);
    font-size: 12px;
    font-weight: 850;
}

.product-body {
    padding: 20px;
}

.product-meta,
.subtitle {
    color: var(--muted);
    font-size: 13px;
}

.product-body h3 {
    margin-bottom: 4px;
    font-size: 20px;
}

.product-body h4 {
    margin-bottom: 10px;
    color: #43536a;
    font-size: 15px;
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.product-footer strong {
    font-size: 20px;
}

.product-footer small {
    color: var(--muted);
    font-size: 12px;
}

.product-footer a {
    color: var(--brand);
    font-weight: 850;
    white-space: nowrap;
}

.area-section {
    background: white;
    max-width: none;
}

.area-section > * {
    max-width: var(--max);
    margin-left: auto;
    margin-right: auto;
}

.area-grid {
    grid-template-columns: repeat(6, 1fr);
}

.area-grid article {
    min-height: 170px;
    background: var(--surface-soft);
}

.service-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.service-list span {
    padding: 12px 14px;
    border: 1px solid #cfe0f4;
    border-radius: var(--radius);
    background: white;
    color: #27415f;
    font-weight: 750;
}

.service-list.small span {
    padding: 9px 11px;
}

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

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

details {
    padding: 18px 20px;
    background: white;
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

summary {
    cursor: pointer;
    font-weight: 850;
}

details p {
    margin: 12px 0 0;
    color: var(--muted);
}

.final-cta {
    margin-bottom: 42px;
    background: #102033;
    color: white;
    border-radius: var(--radius);
}

.final-cta h2 {
    margin-bottom: 0;
}

.page-hero {
    max-width: var(--max);
    margin: 0 auto;
    padding: 76px 24px 28px;
}

.page-hero.compact h1 {
    margin-bottom: 12px;
    font-size: clamp(34px, 5vw, 56px);
}

.page-hero p:last-child {
    max-width: 700px;
    color: var(--muted);
    font-size: 18px;
}

.booking-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
    gap: 24px;
    padding-top: 24px;
}

.booking-form {
    display: grid;
    gap: 18px;
    padding: 24px;
}

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

fieldset {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px;
}

legend {
    padding: 0 8px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #43536a;
}

.checkbox input {
    width: auto;
    min-height: auto;
}

.booking-aside {
    position: sticky;
    top: 88px;
    padding: 24px;
}

.aside-card {
    display: grid;
    gap: 3px;
    margin-top: 12px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.summary-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    padding-top: 24px;
}

.summary-card {
    padding: 24px;
}

.summary-card.wide,
.summary-actions {
    grid-column: 1 / -1;
}

dl {
    display: grid;
    gap: 12px;
    margin: 0;
}

dl div {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

dt {
    color: var(--muted);
    font-weight: 750;
}

dd {
    margin: 0;
    font-weight: 700;
}

.site-footer {
    padding: 46px max(24px, calc((100vw - var(--max)) / 2)) 24px;
    background: white;
    border-top: 1px solid var(--line);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
}

.site-footer p {
    color: var(--muted);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 13px;
}

.floating-book {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 25;
    display: inline-flex;
    align-items: center;
    min-height: 48px;
    padding: 0 18px;
    border-radius: var(--radius);
    color: white;
    background: var(--brand);
    box-shadow: 0 16px 34px rgba(11, 115, 224, 0.28);
    font-weight: 850;
}

@media (max-width: 980px) {
    .hero,
    .booking-layout,
    .summary-layout {
        grid-template-columns: 1fr;
    }

    .hero-content {
        padding-bottom: 10px;
    }

    .trust-strip,
    .benefit-grid,
    .product-grid,
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .booking-aside {
        position: static;
    }
}

@media (max-width: 720px) {
    .site-header {
        align-items: flex-start;
        padding: 14px 18px;
    }

    .nav-toggle {
        display: block;
    }

    .site-nav {
        position: absolute;
        top: 72px;
        left: 18px;
        right: 18px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        background: white;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
    }

    .site-nav.is-open {
        display: flex;
    }

    .hero {
        padding: 44px 18px 28px;
    }

    .hero::before {
        inset: 0 18px 120px;
        border-radius: 0 0 24px 24px;
    }

    h1 {
        font-size: 38px;
    }

    .section,
    .booking-layout,
    .summary-layout,
    .final-cta {
        padding: 52px 18px;
    }

    .section-heading.split,
    .final-cta,
    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }

    .trust-strip,
    .benefit-grid,
    .product-grid,
    .area-grid,
    .process-grid,
    .form-row,
    fieldset,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    dl div {
        grid-template-columns: 1fr;
        gap: 2px;
    }

    .floating-book {
        right: 14px;
        bottom: 14px;
        min-height: 44px;
        font-size: 13px;
    }
}