:root {
    --ink: #15212f;
    --muted: #5d6b7a;
    --line: #dbe2ea;
    --panel: #ffffff;
    --soft: #f4f7fa;
    --accent: #0b6f85;
    --accent-strong: #084f60;
    --gold: #d59b28;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--ink);
    font-family: Arial, "Microsoft YaHei", sans-serif;
    background: #fff;
    line-height: 1.6;
}

a {
    color: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 72px;
    padding: 0 5vw;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
}

.brand {
    color: #1264f4;
    font-size: 28px;
    font-weight: 800;
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
    font-size: 15px;
}

.nav-item {
    position: static;
}

.nav-trigger {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 72px;
    font-weight: 700;
    text-decoration: none;
}

.nav-trigger::after {
    content: "^";
    font-size: 11px;
    transform: translateY(-1px);
}

.mega-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    grid-template-columns: repeat(4, minmax(180px, 1fr));
    gap: 46px;
    padding: 34px 8vw 42px;
    background: #fff;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 34px rgba(21, 33, 47, 0.08);
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu {
    display: grid;
}

.mega-menu.compact {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    max-width: 760px;
    left: 5vw;
    right: auto;
}

.mega-menu h3 {
    margin: 0 0 16px;
    color: #8292a5;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.mega-menu a {
    display: block;
    margin: 0 0 12px;
    color: #12324a;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
}

.mega-menu a:hover,
.nav-trigger:hover {
    color: #1264f4;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 18px;
}

.login-link,
.search-link {
    color: #1264f4;
    font-weight: 700;
    text-decoration: none;
}

.search-link {
    color: #12324a;
    font-size: 24px;
    line-height: 1;
}

.nav-links a {
    text-decoration: none;
}

.nav-cta {
    padding: 10px 16px;
    color: #fff;
    background: var(--accent);
    border-radius: 6px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
    align-items: center;
    gap: 48px;
    min-height: 680px;
    padding: 72px 6vw;
    background:
        linear-gradient(115deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.88) 52%, rgba(226,235,242,0.78) 100%),
        repeating-linear-gradient(90deg, rgba(11,111,133,0.09) 0 1px, transparent 1px 84px),
        repeating-linear-gradient(0deg, rgba(11,111,133,0.07) 0 1px, transparent 1px 84px),
        linear-gradient(135deg, #eef3f7, #d7e4eb);
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0;
}

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

h1 {
    max-width: 780px;
    margin-bottom: 18px;
    font-size: clamp(42px, 8vw, 72px);
    line-height: 1.05;
}

h2 {
    margin-bottom: 14px;
    font-size: 34px;
    line-height: 1.18;
}

h3 {
    margin-bottom: 8px;
    font-size: 21px;
}

.hero-text {
    max-width: 720px;
    color: #304253;
    font-size: 20px;
}

.button-row,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
    border: 1px solid var(--accent);
    border-radius: 6px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button.primary {
    color: #fff;
    background: var(--accent);
}

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

.button.secondary {
    color: var(--accent-strong);
    background: #fff;
}

.file-types {
    margin-top: 18px;
    color: var(--muted);
    font-size: 14px;
}

.quote-card {
    padding: 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 60px rgba(21, 33, 47, 0.16);
}

.quote-card span {
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
}

.quote-card strong {
    display: block;
    margin: 6px 0 20px;
    font-size: 26px;
}

.quote-card dl {
    display: grid;
    gap: 12px;
    margin: 0;
}

.quote-card dl div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

.quote-card dt {
    color: var(--muted);
}

.quote-card dd {
    margin: 0;
    font-weight: 800;
}

.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.trust-strip div {
    padding: 28px 6vw;
    border-right: 1px solid var(--line);
}

.trust-strip strong,
.trust-strip span {
    display: block;
}

.trust-strip strong {
    font-size: 28px;
}

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

.section,
.process-band,
.contact-band,
.quote-layout,
.page-hero {
    padding: 72px 6vw;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 32px;
}

.section-heading p,
.split p,
.contact-band p,
.page-hero p,
.success-panel p {
    color: var(--muted);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.service-card {
    min-height: 230px;
    padding: 24px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.service-card p {
    color: var(--muted);
}

.service-card a {
    display: inline-block;
    margin-top: 16px;
    color: var(--accent-strong);
    font-weight: 800;
}

.process-band {
    background: var(--soft);
}

.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.steps div {
    padding: 22px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.steps span {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    margin-bottom: 18px;
    color: #fff;
    background: var(--gold);
    border-radius: 50%;
    font-weight: 800;
}

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

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 42px;
    align-items: start;
}

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

.quality-list div {
    padding: 18px;
    background: var(--soft);
    border-left: 4px solid var(--accent);
}

.contact-band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    color: #fff;
    background: #203040;
}

.contact-band .eyebrow,
.contact-band p {
    color: #dce6ef;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    padding: 36px 6vw;
    color: #dce6ef;
    background: #111a24;
}

.site-footer p {
    max-width: 520px;
    color: #aebdcc;
}

.site-footer a {
    display: block;
    margin-bottom: 8px;
    color: #fff;
    text-decoration: none;
}

.page-hero {
    background: var(--soft);
}

.service-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    align-items: center;
    gap: 42px;
    padding: 72px 6vw;
    background:
        linear-gradient(115deg, rgba(255,255,255,0.98) 0%, rgba(255,255,255,0.9) 58%, rgba(226,235,242,0.8) 100%),
        repeating-linear-gradient(90deg, rgba(11,111,133,0.08) 0 1px, transparent 1px 72px),
        repeating-linear-gradient(0deg, rgba(11,111,133,0.06) 0 1px, transparent 1px 72px),
        linear-gradient(135deg, #eef3f7, #d7e4eb);
}

.service-hero h1 {
    font-size: clamp(40px, 7vw, 68px);
}

.capability-panel {
    padding: 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 60px rgba(21, 33, 47, 0.14);
}

.capability-panel span {
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.capability-panel strong {
    display: block;
    margin: 8px 0 20px;
    font-size: 24px;
    line-height: 1.25;
}

.capability-panel dl {
    display: grid;
    gap: 12px;
    margin: 0;
}

.capability-panel dl div {
    padding: 14px;
    background: var(--soft);
    border-radius: 6px;
}

.capability-panel dt {
    color: var(--muted);
    font-size: 13px;
}

.capability-panel dd {
    margin: 2px 0 0;
    font-weight: 800;
}

.jump-nav {
    position: sticky;
    top: 72px;
    z-index: 8;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 12px 6vw;
    background: #fff;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.jump-nav a {
    flex: 0 0 auto;
    padding: 8px 12px;
    color: var(--accent-strong);
    background: var(--soft);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.content-section {
    padding: 72px 6vw;
}

.content-section.soft {
    background: var(--soft);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.feature-grid div {
    padding: 22px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.feature-grid p {
    color: var(--muted);
}

.comparison-table {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-grid span {
    padding: 10px 13px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 6px;
    font-weight: 800;
}

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

.faq-list details {
    padding: 18px 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.faq-list summary {
    font-weight: 800;
    cursor: pointer;
}

.faq-list p {
    margin: 12px 0 0;
    color: var(--muted);
}

.page-hero h1 {
    max-width: 860px;
    font-size: clamp(36px, 6vw, 58px);
}

.quote-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 32px;
}

.quote-form,
.quote-side,
.success-panel {
    padding: 28px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

label {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    font-weight: 800;
}

input,
select,
textarea {
    width: 100%;
    min-height: 46px;
    padding: 11px 12px;
    color: var(--ink);
    font: inherit;
    border: 1px solid #c7d1dc;
    border-radius: 6px;
}

textarea {
    resize: vertical;
}

.field-note {
    color: var(--muted);
    font-size: 13px;
    font-weight: 400;
}

.form-alert {
    margin-bottom: 18px;
    padding: 12px 14px;
    color: #8b1e13;
    background: #fff1ee;
    border: 1px solid #f0b5ac;
    border-radius: 6px;
}

.quote-side ul {
    padding-left: 20px;
    color: var(--muted);
}

.contact-box {
    display: grid;
    gap: 8px;
    margin-top: 28px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.contact-box a {
    color: var(--accent-strong);
    font-weight: 800;
}

.center-page {
    display: grid;
    place-items: center;
    min-height: calc(100vh - 72px);
    padding: 48px 6vw;
    background: var(--soft);
}

.success-panel {
    max-width: 620px;
    text-align: center;
}

.admin-section {
    padding: 42px 6vw 72px;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
}

table {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
    background: #fff;
}

th,
td {
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--line);
}

th {
    color: #fff;
    background: #203040;
    font-size: 14px;
}

td span {
    display: block;
    color: var(--muted);
    font-size: 13px;
}

.empty-state {
    padding: 24px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 8px;
}

@media (max-width: 980px) {
    .site-header {
        position: static;
        align-items: flex-start;
        flex-direction: column;
        padding: 18px 6vw;
    }

    .nav-links,
    .header-actions {
        flex-wrap: wrap;
    }

    .nav-trigger {
        min-height: auto;
    }

    .mega-menu,
    .mega-menu.compact {
        position: static;
        display: none;
        grid-template-columns: repeat(2, minmax(160px, 1fr));
        width: 100%;
        max-width: none;
        padding: 18px;
        box-shadow: none;
    }

    .hero,
    .service-hero,
    .quote-layout,
    .split {
        grid-template-columns: 1fr;
    }

    .service-grid,
    .feature-grid,
    .steps,
    .trust-strip {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 720px) {
    .nav-links {
        flex-wrap: wrap;
        gap: 12px;
    }

    .mega-menu,
    .mega-menu.compact {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
        padding-top: 52px;
    }

    h1 {
        font-size: 42px;
    }

    .service-grid,
    .feature-grid,
    .steps,
    .trust-strip,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .jump-nav {
        position: static;
    }

    .trust-strip div {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .contact-band,
    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}