:root {
    --brand: rgb(255, 80, 0);
    --brand-dark: #E85A00;
    --brand-soft: #FFF3EC;
    --page: #F6F6F6;
    --text: #222222;
    --muted: #555555;
    --light: #777777;
    --footer: #1F1F1F;
    --footer-soft: #2B2B2B;
    --line: rgba(0,0,0,.08);
    --shadow: 0 12px 34px rgba(0,0,0,.08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: var(--text);
    background: var(--page);
    line-height: 1.75;
    overflow-x: 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(14px);
    border-bottom: 1px solid rgba(0,0,0,.06);
    box-shadow: 0 6px 22px rgba(0,0,0,.05);
}

.mobile-header {
    min-height: 64px;
    display: grid;
    grid-template-columns: 54px minmax(100px, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
}

.desktop-header {
    display: none;
}

.menu-toggle {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 12px;
    background: #fff3ec;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--brand);
    border-radius: 999px;
}

.logo img,
.mobile-logo img,
.drawer-logo img,
.footer-brand img {
    object-fit: contain;
}

.mobile-logo {
    justify-self: center;
    max-width: 118px;
}

.mobile-logo img {
    max-height: 42px;
}

.logo img {
    max-height: 52px;
    max-width: 155px;
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--brand);
    color: #fff;
    border-radius: 999px;
    padding: 11px 22px;
    font-weight: 700;
    letter-spacing: .5px;
    box-shadow: 0 10px 24px rgba(255,80,0,.25);
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    white-space: nowrap;
}

.main-btn:hover {
    background: var(--brand-dark);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(255,80,0,.32);
}

.header-btn {
    padding: 8px 14px;
    font-size: 13px;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 1090;
    background: rgba(0,0,0,.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1100;
    width: 82vw;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    transform: translateX(-105%);
    transition: transform .3s ease;
    box-shadow: 18px 0 40px rgba(0,0,0,.2);
    padding: 18px;
    overflow-y: auto;
}

.drawer-open {
    overflow: hidden;
}

.drawer-open .drawer-overlay {
    opacity: 1;
    visibility: visible;
}

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

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.drawer-logo img {
    max-height: 46px;
    max-width: 150px;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    color: var(--brand);
    background: var(--brand-soft);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
}

.drawer-nav {
    display: grid;
    gap: 8px;
    padding-top: 18px;
}

.drawer-nav a {
    padding: 13px 14px;
    border-radius: 12px;
    color: #333;
    font-weight: 650;
    background: #fafafa;
}

.drawer-nav a.active,
.drawer-nav a:hover {
    color: var(--brand);
    background: var(--brand-soft);
}

.site-main {
    min-height: 60vh;
}

.section {
    padding: 52px 16px;
}

.section-soft {
    background: #fff;
}

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

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
}

.section-head {
    margin-bottom: 26px;
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 999px;
    color: var(--brand);
    background: rgba(255,80,0,.1);
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 10px;
}

.section-title {
    margin: 0;
    font-size: clamp(26px, 4vw, 40px);
    line-height: 1.28;
    color: #202020;
}

.section-desc {
    margin: 10px 0 0;
    max-width: 780px;
    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: 42px 16px 46px;
    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-width: 0;
}

.hero-image img {
    width: 100%;
    max-height: 520px;
    object-fit: contain;
    filter: drop-shadow(0 18px 28px rgba(0,0,0,.45));
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 26px;
    border-radius: 22px;
    background: rgba(0,0,0,.28);
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: 0 20px 50px rgba(0,0,0,.22);
}

.hero-title {
    margin: 0 0 14px;
    color: rgb(255, 80, 0);
    font-size: clamp(34px, 6vw, 58px);
    line-height: 1.12;
    letter-spacing: 1px;
}

.hero-desc {
    color: #ffffff;
    margin: 0 0 22px;
    font-size: 17px;
    line-height: 1.9;
}

.hero-note {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.hero-note span {
    color: #fff;
    background: rgba(255,80,0,.16);
    border: 1px solid rgba(255,80,0,.35);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 13px;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.quick-card {
    background: #fff;
    border-radius: 16px;
    padding: 18px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,80,0,.08);
    transition: transform .2s ease, box-shadow .2s ease;
}

.quick-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(0,0,0,.1);
}

.quick-card strong {
    display: block;
    color: var(--brand);
    font-size: 18px;
    margin-bottom: 4px;
}

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

.card-grid {
    display: grid;
    gap: 20px;
}

.card-grid.two,
.card-grid.three,
.card-grid.four {
    grid-template-columns: 1fr;
}

.content-card,
.feature-card,
.service-card,
.faq-item,
.step-card,
.notice-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,.05);
}

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

.card-image,
.feature-image,
.app-image,
.topic-image {
    background: linear-gradient(145deg, #fff8f4, #ffffff);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
}

.card-image img,
.feature-image img,
.app-image img,
.topic-image img {
    width: 100%;
    max-height: 180px;
    object-fit: contain;
    object-position: center;
}

.feature-card.large .feature-image img {
    max-height: 240px;
}

.card-body {
    padding: 20px;
}

.card-body h3,
.service-card h3,
.step-card h3,
.notice-card h3,
.faq-item h3 {
    margin: 0 0 8px;
    color: #222;
    font-size: 20px;
    line-height: 1.35;
}

.card-body p,
.service-card p,
.step-card p,
.notice-card p,
.faq-item p {
    margin: 0;
    color: var(--muted);
}

.text-link {
    display: inline-flex;
    margin-top: 12px;
    color: var(--brand);
    font-weight: 700;
    border-bottom: 1px solid rgba(255,80,0,.35);
}

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

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0 0;
}

.tag-row span {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--brand-soft);
    color: var(--brand);
    font-size: 13px;
    font-weight: 650;
}

.app-panel,
.topic-panel {
    display: grid;
    gap: 22px;
    align-items: center;
    background: #fff;
    border-radius: 22px;
    padding: 22px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255,80,0,.08);
}

.app-copy p,
.topic-copy p {
    color: var(--muted);
    margin: 0 0 12px;
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

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

.service-card .num,
.step-card .num {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    margin-bottom: 12px;
}

.notice-band {
    border-radius: 22px;
    background: linear-gradient(135deg, #111, #2b2b2b);
    color: #fff;
    padding: 28px;
    box-shadow: 0 18px 38px rgba(0,0,0,.16);
}

.notice-band h2,
.notice-band h3 {
    margin: 0 0 10px;
    color: var(--brand);
}

.notice-band p {
    margin: 0 0 10px;
    color: #efefef;
}

.notice-list {
    margin: 14px 0 0;
    padding-left: 20px;
    color: #f4f4f4;
}

.notice-list li {
    margin: 6px 0;
}

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

.faq-item {
    padding: 20px;
}

.sub-hero {
    background: linear-gradient(135deg, #101010, #242424);
    color: #fff;
    padding: 54px 16px;
}

.sub-hero .container {
    max-width: 1060px;
}

.sub-hero h1 {
    margin: 0 0 12px;
    color: var(--brand);
    font-size: clamp(30px, 5vw, 48px);
    line-height: 1.25;
}

.sub-hero p {
    margin: 0;
    max-width: 820px;
    color: #f1f1f1;
    font-size: 17px;
}

.page-layout {
    display: grid;
    gap: 22px;
}

.rich-text {
    background: #fff;
    border-radius: 22px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.rich-text h2 {
    color: #222;
    margin: 0 0 10px;
    font-size: 26px;
}

.rich-text h3 {
    margin: 20px 0 8px;
    color: var(--brand);
}

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

.rich-text ul,
.rich-text ol {
    margin: 12px 0 0;
    padding-left: 22px;
    color: var(--muted);
}

.rich-text li {
    margin: 8px 0;
}

.info-list {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}

.info-list li {
    padding: 12px 14px;
    background: #fff8f4;
    border-left: 3px solid var(--brand);
    border-radius: 10px;
}

.site-footer {
    background: var(--footer);
    color: #d8d8d8;
    padding: 46px 16px 22px;
}

.footer-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    gap: 28px;
}

.footer-brand img {
    max-width: 150px;
    max-height: 54px;
    margin-bottom: 14px;
}

.footer-brand p {
    margin: 0;
    color: #d8d8d8;
    max-width: 460px;
}

.footer-links {
    display: grid;
    gap: 22px;
}

.footer-links h3 {
    color: #fff;
    margin: 0 0 10px;
    font-size: 18px;
}

.footer-links a {
    display: block;
    color: #d8d8d8;
    margin: 7px 0;
}

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

.footer-note {
    max-width: 1180px;
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,.12);
    color: #cfcfcf;
    font-size: 14px;
}

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

@media (max-width: 768px) {
    .hero-inner {
      grid-template-columns: 1fr;
      text-align: center;
      gap: 20px;
    }

    .hero-image {
      order: 1;
    }

    .hero-content {
      order: 2;
    }

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

@media (min-width: 560px) {
    .quick-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

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

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

    .desktop-header {
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 24px;
        max-width: 1220px;
        min-height: 76px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .desktop-nav {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 4px;
        flex-wrap: wrap;
    }

    .desktop-nav a {
        padding: 9px 12px;
        border-radius: 999px;
        color: #303030;
        font-weight: 650;
        font-size: 15px;
    }

    .desktop-nav a.active,
    .desktop-nav a:hover {
        color: var(--brand);
        background: var(--brand-soft);
    }

    .header-btn {
        padding: 10px 22px;
        font-size: 15px;
    }

    .section {
        padding: 64px 20px;
    }

    .hero-section {
        padding: 50px 20px 56px;
    }

    .quick-grid {
        grid-template-columns: repeat(9, 1fr);
        gap: 12px;
    }

    .quick-card {
        padding: 15px 12px;
        min-height: 110px;
    }

    .quick-card strong {
        font-size: 16px;
    }

    .quick-card span {
        font-size: 13px;
    }

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

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

    .feature-card.large {
        grid-column: span 2;
    }

    .app-panel,
    .topic-panel {
        grid-template-columns: .95fr 1.05fr;
        padding: 30px;
    }

    .topic-panel.reverse {
        grid-template-columns: 1.05fr .95fr;
    }

    .topic-panel.reverse .topic-image {
        order: 2;
    }

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

    .footer-inner {
        grid-template-columns: .9fr 1.1fr;
        align-items: start;
    }

    .page-layout {
        grid-template-columns: 1fr 1fr;
    }

    .page-layout .wide {
        grid-column: 1 / -1;
    }
}

@media (min-width: 1180px) {
    .desktop-nav a {
        padding: 10px 14px;
    }
}

@media (max-width: 380px) {
    .header-btn {
        padding: 7px 10px;
        font-size: 12px;
    }

    .mobile-logo {
        max-width: 104px;
    }

    .hero-content {
        padding: 20px 16px;
    }

    .section {
        padding: 44px 14px;
    }
}