:root {
    --ink: #15233a;
    --muted: #5d6a7d;
    --line: #dce8f5;
    --paper: #ffffff;
    --soft: #f5f9ff;
    --blue: #2f67d8;
    --blue-dark: #173b8f;
    --blue-deep: #0c2461;
    --sky: #89ade9;
    --orange: #fd951d;
    --orange-dark: #d97400;
    --green: #3f9a55;
    --shadow: 0 18px 48px rgba(24, 56, 119, .16);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: #fff;
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

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;
    min-height: 86px;
    padding: 12px clamp(18px, 6vw, 84px);
    background: rgba(255, 255, 255, .96);
    border-bottom: 1px solid rgba(220, 232, 245, .92);
    box-shadow: 0 8px 24px rgba(31, 64, 130, .06);
    backdrop-filter: blur(14px);
}

.brand img {
    width: 188px;
    height: auto;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 15px;
    font-weight: 900;
}

.site-nav a {
    padding: 10px 12px;
    border-radius: 7px;
}

.site-nav a:hover {
    color: var(--blue-dark);
    background: #edf4ff;
}

.site-nav .nav-cta {
    margin-left: 6px;
    color: #241506;
    background: var(--orange);
}

.site-nav .nav-cta:hover {
    color: #241506;
    background: #ffb24c;
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--ink);
    background: #fff;
    font-size: 22px;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1,
h2,
h3 {
    margin: 0;
    line-height: 1.14;
    letter-spacing: 0;
}

h1 {
    max-width: 720px;
    color: #fff;
    font-size: clamp(40px, 4.8vw, 64px);
}

h2 {
    color: #08285d;
    font-size: clamp(30px, 3.7vw, 46px);
}

h3 {
    color: #07306f;
    font-size: 22px;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--orange);
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

.hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .86fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
    min-height: 680px;
    padding: clamp(60px, 8vw, 104px) clamp(18px, 6vw, 84px);
    color: #fff;
    background:
        linear-gradient(135deg, rgba(12, 36, 97, .98), rgba(48, 103, 216, .9));
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    right: -12%;
    bottom: -42%;
    width: 70%;
    height: 520px;
    background: rgba(255, 255, 255, .12);
    transform: rotate(-8deg);
}

.hero-copy,
.hero-visual {
    position: relative;
    z-index: 1;
    min-width: 0;
}

.hero-lines {
    display: grid;
    gap: 8px;
    margin-top: 22px;
    color: #fff;
    font-size: clamp(22px, 2.7vw, 34px);
    font-weight: 900;
    line-height: 1.2;
}

.hero-lines span:nth-child(odd) {
    color: var(--sky);
}

.hero-lines span:nth-child(even) {
    color: var(--orange);
}

.hero .lead {
    max-width: 720px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, .86);
    font-size: 19px;
}

.hero-actions,
.download-list,
.footer-links,
.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-actions {
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: 7px;
    font-weight: 900;
    cursor: pointer;
}

.btn.warm {
    color: #251607;
    background: var(--orange);
    box-shadow: 0 14px 34px rgba(253, 149, 29, .3);
}

.btn.secondary {
    color: #fff;
    background: rgba(255, 255, 255, .12);
    border-color: rgba(255, 255, 255, .36);
}

.hero-visual {
    display: grid;
    gap: 16px;
}

.legacy-card {
    align-self: stretch;
    align-content: center;
}

.hero-main-img {
    width: 100%;
    max-height: 430px;
    object-fit: contain;
    padding: 18px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .08);
    filter: drop-shadow(0 28px 34px rgba(0, 0, 0, .22));
}

.hero-mini-card {
    padding: 18px 20px;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    box-shadow: var(--shadow);
}

.hero-mini-card strong {
    display: block;
    color: var(--blue-dark);
    font-size: 22px;
}

.hero-mini-card span {
    color: var(--muted);
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    padding: 0 clamp(18px, 6vw, 84px);
    background: var(--line);
}

.quick-card {
    min-height: 150px;
    min-width: 0;
    padding: 24px;
    background: #fff;
}

.quick-card:hover {
    background: #fff8ed;
}

.quick-card span {
    display: block;
    margin-bottom: 8px;
    color: #07306f;
    font-size: 21px;
    font-weight: 900;
}

.quick-card small {
    color: var(--muted);
    font-size: 14px;
}

.section {
    padding: clamp(62px, 8vw, 104px) clamp(18px, 6vw, 84px);
}

.section-heading {
    max-width: 820px;
    margin-bottom: 34px;
}

.section-heading p:not(.eyebrow) {
    color: var(--muted);
    font-size: 18px;
}

.service-section {
    background:
        linear-gradient(180deg, #fff 0%, #f4f8ff 100%);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.service-card {
    min-width: 0;
    min-height: 252px;
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(27, 63, 130, .07);
}

.service-card.highlight {
    border-top: 4px solid var(--orange);
}

.service-card:hover {
    border-color: rgba(47, 103, 216, .5);
    transform: translateY(-2px);
}

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

.service-icon {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    margin-bottom: 22px;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--blue), #7aa5ff);
    font-size: 23px;
    font-weight: 900;
}

.feature-band {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(320px, 1fr);
    gap: clamp(28px, 5vw, 70px);
    align-items: center;
    padding: clamp(64px, 8vw, 108px) clamp(18px, 6vw, 84px);
    color: #fff;
    background:
        linear-gradient(135deg, #0d2d72 0%, #315fc7 100%);
}

.feature-band h2 {
    color: #fff;
}

.feature-band p:not(.eyebrow) {
    max-width: 650px;
    color: rgba(255, 255, 255, .82);
    font-size: 18px;
}

.travel-showcase {
    display: grid;
    grid-template-columns: minmax(280px, .78fr) minmax(320px, 1fr);
    gap: clamp(30px, 6vw, 82px);
    align-items: center;
    padding: clamp(64px, 8vw, 108px) clamp(18px, 6vw, 84px);
    color: #fff;
    background:
        linear-gradient(135deg, rgba(10, 33, 92, .96), rgba(49, 95, 199, .9)),
        url("../img/about.png") left bottom / 360px auto no-repeat;
}

.travel-showcase h2 {
    color: #fff;
}

.travel-showcase p:not(.eyebrow) {
    max-width: 640px;
    color: rgba(255, 255, 255, .84);
    font-size: 18px;
}

.travel-art {
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 8px;
    background: rgba(255, 255, 255, .1);
    box-shadow: 0 22px 60px rgba(0, 0, 0, .2);
}

.travel-tiles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    min-height: 420px;
}

.travel-tiles span {
    display: grid;
    place-items: center;
    min-height: 190px;
    border-radius: 8px;
    color: #102d78;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, .96), rgba(237, 244, 255, .92));
    font-size: clamp(28px, 3.4vw, 42px);
    font-weight: 900;
    box-shadow: 0 16px 34px rgba(0, 0, 0, .12);
}

.travel-tiles span:nth-child(2),
.travel-tiles span:nth-child(3) {
    color: #241506;
    background: linear-gradient(135deg, #ffb24c, #fff1d6);
}

.pill-row {
    margin-top: 22px;
}

.pill-row span {
    padding: 9px 12px;
    border-radius: 7px;
    color: #241506;
    background: #fff;
    font-weight: 900;
}

.feature-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.feature-images.single {
    grid-template-columns: 1fr;
}

.feature-images img {
    width: 100%;
    min-height: 260px;
    object-fit: contain;
    padding: 20px;
    border-radius: 8px;
    background: rgba(255, 255, 255, .92);
    box-shadow: 0 18px 44px rgba(0, 0, 0, .2);
}

.business-tiles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.business-tiles span {
    display: grid;
    place-items: center;
    min-height: 160px;
    border-radius: 8px;
    color: #102d78;
    background: rgba(255, 255, 255, .94);
    font-size: clamp(26px, 3vw, 38px);
    font-weight: 900;
    box-shadow: 0 18px 44px rgba(0, 0, 0, .18);
}

.business-tiles span:nth-child(even) {
    color: #241506;
    background: linear-gradient(135deg, #ffb24c, #fff1d6);
}

.split-info {
    background: #fff;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.info-grid article {
    padding: 24px;
    border-left: 4px solid var(--orange);
    border-radius: 8px;
    background: var(--soft);
}

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

.rent-section {
    background: #f7fbff;
}

.mini-fleet {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.mini-fleet article {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(27, 63, 130, .08);
}

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

.mini-fleet h3,
.mini-fleet p {
    margin-left: 20px;
    margin-right: 20px;
}

.mini-fleet h3 {
    margin-top: 18px;
}

.mini-fleet p {
    margin-bottom: 22px;
    color: var(--muted);
}

.downloads {
    background: #fff;
}

.download-list a {
    display: inline-flex;
    align-items: center;
    min-height: 46px;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--blue-dark);
    background: #fff;
    font-weight: 900;
}

.download-list a:hover {
    border-color: var(--orange);
    background: #fff8ed;
}

.wechat-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    gap: clamp(28px, 5vw, 70px);
    align-items: center;
    padding: clamp(62px, 8vw, 104px) clamp(18px, 6vw, 84px);
    background:
        linear-gradient(135deg, #fff8ed 0%, #edf4ff 100%);
}

.wechat-section p:not(.eyebrow) {
    max-width: 650px;
    color: var(--muted);
    font-size: 18px;
}

.wechat-card {
    display: grid;
    gap: 14px;
    justify-items: center;
    padding: 26px;
    border: 0;
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
    cursor: pointer;
    font: inherit;
    text-align: center;
}

.wechat-card img {
    width: min(260px, 100%);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.wechat-card strong {
    color: var(--blue-dark);
    font-size: 20px;
}

.wechat-card span {
    color: var(--muted);
}

.modal[hidden] {
    display: none;
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: grid;
    place-items: center;
    padding: 22px;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    background: rgba(9, 24, 58, .72);
    cursor: pointer;
}

.modal-panel {
    position: relative;
    z-index: 1;
    display: grid;
    justify-items: center;
    gap: 12px;
    width: min(420px, 100%);
    padding: 28px;
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    box-shadow: 0 26px 80px rgba(0, 0, 0, .32);
}

.modal-panel img {
    width: min(320px, 100%);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.modal-panel strong {
    color: var(--blue-dark);
    font-size: 24px;
}

.modal-panel span {
    color: var(--muted);
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    color: var(--ink);
    background: #edf4ff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 34px clamp(18px, 6vw, 84px);
    color: rgba(255, 255, 255, .8);
    background: #101827;
}

.site-footer strong {
    color: #fff;
}

.site-footer p {
    margin: 6px 0 0;
}

.footer-links a {
    color: #fff;
}

@media (max-width: 1120px) {
    .hero,
    .feature-band,
    .travel-showcase,
    .wechat-section {
        grid-template-columns: 1fr;
    }

    .quick-links,
    .service-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .info-grid,
    .mini-fleet {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .site-header {
        min-height: 72px;
    }

    .brand img {
        width: 150px;
    }

    .nav-toggle {
        display: inline-grid;
        place-items: center;
    }

    .site-nav {
        position: absolute;
        left: 0;
        right: 0;
        top: 72px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 18px 18px;
        background: #fff;
        border-bottom: 1px solid var(--line);
    }

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

    .site-nav a {
        padding: 13px 8px;
    }

    .hero {
        display: block;
        min-height: auto;
        padding: 44px 18px 54px;
    }

    .hero-copy,
    .hero-visual {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }

    h1 {
        max-width: 100%;
        font-size: 28px;
        line-height: 1.18;
        word-break: break-all;
    }

    h2 {
        font-size: 30px;
    }

    .hero-lines {
        max-width: 100%;
        font-size: 20px;
        word-break: break-all;
    }

    .hero .lead {
        max-width: 100%;
        font-size: 16px;
        word-break: break-all;
    }

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

    .btn {
        width: 100%;
    }

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

    .hero-main-img {
        max-height: 280px;
    }

    .quick-links,
    .service-grid,
    .feature-images,
    .travel-tiles,
    .business-tiles {
        grid-template-columns: 1fr;
    }

    .site-footer {
        display: block;
    }

    .footer-links {
        margin-top: 18px;
    }
}