:root {
    --brand: rgb(255, 80, 0);
    --brand-dark: #E85A00;
    --orange-light: #FFF3EC;
    --page-bg: #F6F6F6;
    --text: #222222;
    --muted: #555555;
    --soft: #777777;
    --footer: #1F1F1F;
    --footer-soft: #D8D8D8;
    --line: rgba(0, 0, 0, .08);
    --shadow: 0 14px 32px rgba(18, 18, 18, .08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: var(--page-bg);
    color: var(--text);
    line-height: 1.72;
    overflow-x: hidden;
}

body.drawer-open {
    overflow: hidden;
}

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

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, .06);
    box-shadow: 0 4px 18px rgba(0, 0, 0, .05);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 74px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.logo-img {
    width: 128px;
    max-height: 48px;
    object-fit: contain;
}

.desktop-nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
}

.desktop-nav a {
    padding: 9px 12px;
    border-radius: 999px;
    font-size: 15px;
    color: #333;
    transition: color .2s ease, background .2s ease;
}

.desktop-nav a:hover,
.desktop-nav a.active {
    color: var(--brand);
    background: rgba(255, 80, 0, .08);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 10px 20px;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-weight: 700;
    letter-spacing: .02em;
    box-shadow: 0 10px 22px rgba(255, 80, 0, .26);
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.main-btn:hover {
    background: var(--brand-dark);
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(232, 90, 0, .3);
}

.header-btn {
    flex: 0 0 auto;
}

.mobile-header {
    display: none;
}

.mobile-header-inner {
    height: 62px;
    padding: 0 12px;
    display: grid;
    grid-template-columns: 70px minmax(0, 1fr) 92px;
    align-items: center;
}

.menu-toggle {
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: 12px;
    background: #fff;
    box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .08);
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    border-radius: 4px;
    background: #222;
}

.mobile-brand {
    justify-self: center;
    min-width: 0;
}

.mobile-brand .logo-img {
    width: 108px;
    max-height: 42px;
    object-fit: contain;
}

.mobile-register {
    justify-self: end;
    min-height: 34px;
    padding: 8px 12px;
    font-size: 13px;
    white-space: nowrap;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 998;
    background: rgba(0, 0, 0, .48);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    width: 84vw;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    transform: translateX(-104%);
    transition: transform .28s ease;
    box-shadow: 18px 0 36px rgba(0, 0, 0, .18);
    padding: 18px;
    overflow-y: auto;
}

.drawer-open .drawer-overlay {
    opacity: 1;
    pointer-events: auto;
}

.drawer-open .mobile-drawer {
    transform: translateX(0);
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}

.drawer-logo {
    width: 118px;
    max-height: 46px;
    object-fit: contain;
}

.drawer-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 80, 0, .12);
    color: var(--brand);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    padding: 16px 0 26px;
    display: grid;
    gap: 8px;
}

.drawer-nav a {
    padding: 12px 14px;
    border-radius: 12px;
    color: #333;
    background: #fafafa;
    border: 1px solid rgba(0, 0, 0, .04);
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: var(--brand);
    background: var(--orange-light);
    border-color: rgba(255, 80, 0, .18);
}

.section {
    padding: 58px 20px;
}

.section-tight {
    padding: 44px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-head {
    max-width: 820px;
    margin: 0 auto 28px;
    text-align: center;
}

.section-head.left {
    margin-left: 0;
    text-align: left;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 80, 0, .1);
    color: var(--brand);
    font-weight: 700;
    font-size: 14px;
}

h1, h2, h3 {
    margin: 0;
    line-height: 1.28;
    color: #1f1f1f;
}

p {
    margin: 0;
}

.section-title {
    margin-top: 10px;
    font-size: clamp(28px, 4vw, 42px);
}

.section-desc {
    margin-top: 12px;
    color: var(--muted);
    font-size: 16px;
}

.hero-section {
    background:
        linear-gradient(90deg, rgba(0,0,0,.78), rgba(0,0,0,.58)),
        url('banner.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 44px 20px 56px;
    color: #fff;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-image {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
}

.hero-image::after {
    content: "";
    position: absolute;
    inset: auto 8% 4% 8%;
    height: 18px;
    border-radius: 999px;
    background: rgba(255, 80, 0, .28);
    filter: blur(18px);
    z-index: -1;
}

.hero-image img {
    width: 100%;
    max-height: 520px;
    object-fit: contain;
    filter: drop-shadow(0 22px 32px rgba(0, 0, 0, .45));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 560px;
}

.hero-kicker {
    color: #fff;
    font-weight: 700;
    letter-spacing: .08em;
    margin-bottom: 10px;
}

.hero-title {
    color: rgb(255, 80, 0);
    font-size: clamp(36px, 5vw, 58px);
    letter-spacing: .02em;
}

.hero-desc {
    color: #ffffff;
    margin-top: 18px;
    font-size: 17px;
    line-height: 1.9;
}

.hero-actions {
    margin-top: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-note {
    color: #e8e8e8;
    font-size: 14px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 14px;
}

.quick-card {
    background: #fff;
    border-radius: 16px;
    padding: 18px 12px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 80, 0, .08);
}

.quick-mark {
    width: 34px;
    height: 34px;
    margin: 0 auto 10px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255,80,0,.16), rgba(255,80,0,.04));
    display: grid;
    place-items: center;
    color: var(--brand);
    font-weight: 800;
}

.quick-card strong {
    display: block;
    color: #202020;
    font-size: 15px;
}

.quick-card .text-link {
    margin-top: 6px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand);
    font-weight: 700;
    font-size: 15px;
    margin-top: 12px;
}

.text-link::after {
    content: "›";
    font-size: 18px;
    line-height: 1;
}

.text-link:hover {
    color: var(--brand-dark);
}

.grid {
    display: grid;
    gap: 22px;
}

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

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

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

.content-card,
.feature-card,
.service-card,
.faq-item,
.notice-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, .04);
}

.content-card,
.feature-card {
    overflow: hidden;
}

.card-media {
    min-height: 128px;
    max-height: 190px;
    padding: 12px;
    background: linear-gradient(135deg, #fff7f2, #f7f7f7);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-media img {
    width: 100%;
    max-height: 168px;
    object-fit: contain;
    object-position: center;
}

.feature-card .card-media {
    max-height: 210px;
}

.feature-card .card-media img {
    max-height: 188px;
}

.card-body {
    padding: 20px 22px 22px;
}

.card-body h3 {
    font-size: 21px;
    color: #222;
}

.card-body p {
    margin-top: 10px;
    color: var(--muted);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.tag {
    padding: 4px 10px;
    border-radius: 999px;
    color: var(--brand);
    background: rgba(255, 80, 0, .1);
    font-weight: 700;
    font-size: 13px;
}

.app-panel {
    display: grid;
    grid-template-columns: .92fr 1.08fr;
    gap: 28px;
    align-items: center;
    background: #fff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: var(--shadow);
}

.app-visual {
    border-radius: 22px;
    background: linear-gradient(135deg, #fff3ec, #f9f9f9);
    padding: 18px;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-visual img {
    max-height: 360px;
    object-fit: contain;
}

.app-content h2 {
    font-size: clamp(26px, 4vw, 38px);
}

.app-content p {
    color: var(--muted);
    margin-top: 14px;
}

.info-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.info-list li {
    list-style: none;
    background: #fff;
    border-left: 4px solid var(--brand);
    border-radius: 12px;
    padding: 12px 14px;
    color: var(--muted);
    box-shadow: 0 8px 18px rgba(0, 0, 0, .04);
}

.service-card,
.notice-card,
.faq-item {
    padding: 22px;
}

.service-card h3,
.notice-card h3,
.faq-item h3 {
    font-size: 20px;
}

.service-card p,
.notice-card p,
.faq-item p {
    margin-top: 10px;
    color: var(--muted);
}

.orange-section {
    background: var(--orange-light);
}

.white-section {
    background: #fff;
}

.page-hero {
    background:
        linear-gradient(90deg, rgba(0,0,0,.82), rgba(0,0,0,.64)),
        url('banner.webp');
    background-size: cover;
    background-position: center;
    padding: 58px 20px;
    color: #fff;
}

.page-hero .container {
    max-width: 1080px;
}

.page-hero h1 {
    color: var(--brand);
    font-size: clamp(34px, 5vw, 54px);
}

.page-hero p {
    max-width: 820px;
    margin-top: 16px;
    color: #f1f1f1;
    font-size: 17px;
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 24px;
    align-items: start;
}

.article-block {
    background: #fff;
    border-radius: 22px;
    padding: 26px;
    box-shadow: var(--shadow);
}

.article-block + .article-block {
    margin-top: 22px;
}

.article-block h2 {
    color: #222;
    font-size: 26px;
}

.article-block h3 {
    margin-top: 18px;
    color: var(--brand);
    font-size: 20px;
}

.article-block p {
    color: var(--muted);
    margin-top: 12px;
}

.article-block ul,
.article-block ol {
    margin: 16px 0 0;
    padding-left: 20px;
    color: var(--muted);
}

.article-block li + li {
    margin-top: 8px;
}

.side-card {
    position: sticky;
    top: 94px;
    background: #fff;
    border-radius: 22px;
    padding: 22px;
    box-shadow: var(--shadow);
}

.side-card h2 {
    font-size: 22px;
}

.side-card p,
.side-card a {
    margin-top: 10px;
}

.side-card a {
    display: block;
    color: var(--brand);
    font-weight: 700;
}

.page-image {
    border-radius: 20px;
    background: linear-gradient(135deg, #fff3ec, #f8f8f8);
    padding: 16px;
    margin: 18px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-image img {
    max-height: 360px;
    object-fit: contain;
}

.step-list {
    counter-reset: steps;
    display: grid;
    gap: 14px;
    padding: 0;
    margin: 18px 0 0;
}

.step-list li {
    counter-increment: steps;
    list-style: none;
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 12px;
    align-items: start;
    background: #fff;
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 8px 18px rgba(0, 0, 0, .05);
}

.step-list li::before {
    content: counter(steps);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-item h2 {
    font-size: 20px;
    color: #222;
}

.faq-item p {
    color: var(--muted);
    margin-top: 8px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.site-footer {
    background: var(--footer);
    color: var(--footer-soft);
    padding: 48px 20px 24px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 1.7fr;
    gap: 36px;
}

.footer-logo {
    width: 136px;
    max-height: 52px;
    object-fit: contain;
}

.footer-brand p {
    margin-top: 14px;
    color: #d0d0d0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.footer-links h3 {
    color: #fff;
    font-size: 17px;
    margin-bottom: 10px;
}

.footer-links a {
    display: block;
    color: #d8d8d8;
    padding: 5px 0;
}

.footer-links a:hover {
    color: var(--brand);
}

.footer-note {
    max-width: 1200px;
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,.1);
    color: #bfbfbf;
    font-size: 14px;
}

.footer-note p + p {
    margin-top: 6px;
}

@media (max-width: 1100px) {
    .desktop-nav a {
        padding: 8px 8px;
        font-size: 14px;
    }

    .quick-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .desktop-header {
        display: none;
    }

    .mobile-header {
        display: block;
    }

    .section {
        padding: 48px 16px;
    }

    .section-tight {
        padding: 36px 16px;
    }

    .hero-section {
        padding: 28px 16px 42px;
        background:
            linear-gradient(180deg, rgba(0,0,0,.76), rgba(0,0,0,.66)),
            url('banner.webp');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }

    .hero-image {
        order: 1;
    }

    .hero-content {
        order: 2;
        max-width: 100%;
    }

    .hero-image img {
        max-height: 320px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-desc {
        font-size: 15.5px;
    }

    .quick-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .app-panel,
    .page-layout,
    .footer-container,
    .footer-links,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .side-card {
        position: static;
    }

    .page-hero {
        padding: 48px 16px;
    }

    .app-panel {
        padding: 20px;
    }

    .app-visual img,
    .page-image img {
        max-height: 300px;
    }
}

@media (max-width: 560px) {
    .mobile-header-inner {
        grid-template-columns: 58px minmax(0, 1fr) 88px;
        padding: 0 10px;
    }

    .mobile-brand .logo-img {
        width: 96px;
    }

    .mobile-register {
        font-size: 13px;
        padding: 7px 10px;
    }

    .menu-toggle {
        width: 40px;
        height: 40px;
    }

    .hero-title {
        font-size: 34px;
    }

    .hero-image img {
        max-height: 270px;
    }

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

    .card-media {
        min-height: 112px;
        max-height: 160px;
    }

    .card-media img {
        max-height: 138px;
    }

    .feature-card .card-media img {
        max-height: 150px;
    }

    .article-block {
        padding: 20px;
    }

    .service-card,
    .notice-card,
    .faq-item {
        padding: 18px;
    }
}