* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: #F3F7FC;
    color: #243447;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    padding-top: 84px;
}

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

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

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #FFFFFF;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px rgba(35,70,110,0.08);
}

.header-inner {
    width: min(1320px, calc(100% - 32px));
    margin: 0 auto;
    height: 84px;
    display: flex;
    align-items: center;
    gap: 22px;
}

.text-logo {
    font-size: 28px;
    font-weight: 800;
    color: #163B66;
    letter-spacing: 1px;
    white-space: nowrap;
    line-height: 1;
}

.text-logo span {
    color: #169BFF;
}

.nav {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
}

.nav::-webkit-scrollbar {
    display: none;
}

.nav a {
    color: #32506E;
    font-size: 14px;
    font-weight: 650;
    padding: 28px 9px 24px;
    position: relative;
    white-space: nowrap;
}

.nav a::after {
    content: "";
    position: absolute;
    left: 9px;
    right: 9px;
    bottom: 17px;
    height: 3px;
    border-radius: 999px;
    background: #169BFF;
    opacity: 0;
    transform: scaleX(0.4);
    transition: 0.25s ease;
}

.nav a.active,
.nav a:hover {
    color: #169BFF;
}

.nav a.active::after,
.nav a:hover::after {
    opacity: 1;
    transform: scaleX(1);
}

.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 24px;
    color: #FFFFFF;
    font-weight: 750;
    border-radius: 999px;
    background: linear-gradient(180deg, #31C4FF 0%, #189DFF 100%);
    box-shadow: 0 12px 22px rgba(22,155,255,0.28);
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(22,155,255,0.32);
}

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

.menu-toggle,
.drawer-close {
    display: none;
    border: none;
    background: transparent;
    color: #163B66;
    cursor: pointer;
}

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

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.section {
    padding: 72px 0;
}

.section.soft {
    background: #EEF4FB;
}

.section-title {
    margin: 0 0 16px;
    color: #163B66;
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

.section-lead {
    margin: 0 auto 34px;
    max-width: 820px;
    color: #607388;
    font-size: 17px;
    text-align: center;
}

.hero {
    padding: 72px 0 54px;
    position: relative;
    overflow: hidden;
}

.hero::before,
.inner-hero::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 999px;
    background: rgba(22,155,255,0.10);
    top: -180px;
    right: -120px;
}

.hero::after,
.inner-hero::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 999px;
    background: rgba(255,159,26,0.10);
    bottom: -140px;
    left: -100px;
}

.hero-grid,
.inner-hero-grid,
.app-band,
.about-band,
.support-band {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 44px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.eyebrow,
.tag,
.number-badge {
    color: #FF9F1A;
    font-weight: 750;
    letter-spacing: 0.04em;
}

.hero h1,
.inner-hero h1 {
    margin: 12px 0 20px;
    color: #163B66;
    font-size: clamp(36px, 6vw, 60px);
    line-height: 1.12;
    letter-spacing: -0.04em;
}

.hero p,
.inner-hero p {
    margin: 0 0 22px;
    color: #607388;
    font-size: 18px;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.text-link {
    color: #169BFF;
    font-weight: 750;
}

.visual-card {
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(22,59,102,0.10);
    border-radius: 32px;
    padding: 18px;
    box-shadow: 0 14px 36px rgba(35,70,110,0.10);
}

.visual-card img {
    width: 100%;
    max-height: 420px;
    object-fit: contain;
    border-radius: 24px;
    background: #E7F0FA;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 28px;
}

.stat-card {
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(22,59,102,0.10);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 14px 36px rgba(35,70,110,0.10);
}

.stat-card strong {
    display: block;
    color: #169BFF;
    font-size: 26px;
    line-height: 1.2;
}

.stat-card span {
    color: #607388;
    font-size: 14px;
}

.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));
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.step-card {
    background: rgba(255,255,255,0.96);
    border: 1px solid rgba(22,59,102,0.10);
    box-shadow: 0 14px 36px rgba(35,70,110,0.10);
    border-radius: 26px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.notice-card,
.step-card {
    padding: 26px;
}

.zone-card h3,
.card h3,
.info-card h3,
.review-card h3,
.faq-card h3,
.step-card h3,
.notice-card h3 {
    margin: 0 0 12px;
    color: #163B66;
    font-size: 21px;
    line-height: 1.35;
}

.zone-card p,
.card p,
.info-card p,
.review-card p,
.faq-card p,
.step-card p,
.notice-card p {
    margin: 0 0 14px;
    color: #607388;
}

.zone-card .text-link,
.card .text-link {
    display: inline-flex;
    margin-top: 6px;
}

.card-img {
    margin: -8px -8px 18px;
    border-radius: 20px;
    overflow: hidden;
    background: #E7F0FA;
}

.card-img img {
    width: 100%;
    max-height: 230px;
    object-fit: contain;
}

.icon-dot {
    width: 42px;
    height: 42px;
    border-radius: 16px;
    background: #E7F0FA;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #169BFF;
    font-weight: 800;
    margin-bottom: 16px;
}

.center {
    text-align: center;
}

.app-band,
.about-band,
.support-band {
    background: #FFFFFF;
    border: 1px solid rgba(22,59,102,0.10);
    box-shadow: 0 14px 36px rgba(35,70,110,0.10);
    border-radius: 32px;
    padding: 34px;
}

.app-band img,
.about-band img,
.support-band img,
.inner-visual img {
    width: 100%;
    max-height: 360px;
    object-fit: contain;
    border-radius: 24px;
    background: #E7F0FA;
}

.check-list,
.simple-list {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.check-list li,
.simple-list li {
    position: relative;
    padding-left: 28px;
    color: #243447;
}

.check-list li::before,
.simple-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: #169BFF;
    box-shadow: 0 0 0 5px rgba(22,155,255,0.12);
}

.notice-card {
    background: #E7F0FA;
}

.notice-card strong {
    color: #163B66;
}

.inner-hero {
    padding: 66px 0 42px;
    position: relative;
    overflow: hidden;
}

.inner-hero h1 {
    font-size: clamp(34px, 5vw, 54px);
}

.breadcrumb {
    color: #8A9AAF;
    font-size: 14px;
    margin-bottom: 12px;
}

.breadcrumb a {
    color: #169BFF;
}

.content-section {
    padding: 58px 0;
}

.content-section.alt {
    background: #EEF4FB;
}

.copy-block {
    max-width: 980px;
    margin: 0 auto 28px;
}

.copy-block p {
    color: #607388;
    margin: 0 0 16px;
    font-size: 17px;
}

.page-title-small {
    margin: 0 0 14px;
    color: #163B66;
    font-size: clamp(26px, 4vw, 38px);
    line-height: 1.25;
}

.step-card .number-badge {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255,159,26,0.12);
    margin-bottom: 14px;
}

.review-card {
    position: relative;
}

.review-card::before {
    content: "“";
    position: absolute;
    right: 22px;
    top: 10px;
    color: rgba(22,155,255,0.16);
    font-size: 78px;
    line-height: 1;
    font-family: Georgia, serif;
}

.review-card .review-name {
    color: #163B66;
    font-weight: 800;
    margin-top: 16px;
}

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

.faq-card h3 {
    font-size: 19px;
}

.contact-box {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 26px;
    align-items: start;
}

.form-like {
    display: grid;
    gap: 14px;
}

.input-look {
    background: #EEF4FB;
    border: 1px solid rgba(22,59,102,0.12);
    border-radius: 16px;
    padding: 16px 18px;
    color: #607388;
}

.site-footer {
    background: #163B66;
    color: #EAF4FF;
    padding: 56px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.55fr 0.75fr 0.75fr 0.85fr;
    gap: 32px;
}

.footer-logo {
    color: #EAF4FF;
    display: inline-flex;
    margin-bottom: 18px;
}

.footer-brand p,
.footer-bottom p {
    color: rgba(234,244,255,0.78);
    margin: 0 0 12px;
}

.footer-alert {
    border-left: 3px solid #FF9F1A;
    padding-left: 12px;
}

.footer-col h3 {
    margin: 0 0 14px;
    color: #FFFFFF;
    font-size: 18px;
}

.footer-col a {
    display: block;
    color: rgba(234,244,255,0.78);
    margin: 8px 0;
}

.footer-col a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    border-top: 1px solid rgba(234,244,255,0.16);
    margin-top: 36px;
    padding-top: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.drawer-mask,
.mobile-drawer {
    display: none;
}

@media (max-width: 1180px) {
    .nav a {
        padding-left: 7px;
        padding-right: 7px;
        font-size: 13px;
    }
}

@media (max-width: 980px) {
    body {
        padding-top: 72px;
    }

    .header-inner {
        height: 72px;
        justify-content: space-between;
        gap: 10px;
    }

    .nav {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        border-radius: 14px;
        background: #EEF4FB;
    }

    .menu-toggle span {
        width: 20px;
        height: 2px;
        border-radius: 999px;
        background: #163B66;
    }

    .text-logo {
        font-size: 24px;
    }

    .header-btn {
        min-height: 40px;
        padding: 0 18px;
    }

    .drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(9,28,48,0.44);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease;
        z-index: 1100;
    }

    .drawer-mask.show {
        opacity: 1;
        pointer-events: auto;
    }

    .mobile-drawer {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: min(86vw, 340px);
        height: 100vh;
        background: #FFFFFF;
        box-shadow: 0 20px 60px rgba(15,48,84,0.22);
        z-index: 1200;
        transform: translateX(-102%);
        transition: transform 0.28s ease;
        padding: 24px;
        overflow-y: auto;
    }

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

    body.drawer-open {
        overflow: hidden;
    }

    .drawer-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        margin-bottom: 24px;
    }

    .drawer-close {
        display: inline-flex;
        width: 38px;
        height: 38px;
        align-items: center;
        justify-content: center;
        border-radius: 12px;
        background: #EEF4FB;
        font-size: 28px;
        line-height: 1;
    }

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

    .drawer-nav a {
        color: #32506E;
        padding: 12px 14px;
        border-radius: 14px;
        font-weight: 700;
    }

    .drawer-nav a.active,
    .drawer-nav a:hover {
        color: #169BFF;
        background: #EEF4FB;
    }

    .drawer-btn {
        width: 100%;
        margin: 22px 0 16px;
    }

    .drawer-note {
        color: #8A9AAF;
        font-size: 13px;
        margin: 0;
    }

    .hero-grid,
    .inner-hero-grid,
    .app-band,
    .about-band,
    .support-band,
    .contact-box {
        grid-template-columns: 1fr;
    }

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 640px) {
    .container,
    .header-inner {
        width: min(100% - 24px, 1180px);
    }

    .header-inner {
        position: relative;
    }

    .header-inner > .text-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .header-btn {
        padding: 0 14px;
        font-size: 14px;
    }

    .hero,
    .inner-hero {
        padding-top: 42px;
    }

    .section,
    .content-section {
        padding: 44px 0;
    }

    .hero h1,
    .inner-hero h1 {
        font-size: 34px;
    }

    .hero p,
    .inner-hero p {
        font-size: 16px;
    }

    .hero-stats,
    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .app-band,
    .about-band,
    .support-band,
    .card,
    .zone-card,
    .info-card,
    .review-card,
    .faq-card,
    .notice-card,
    .step-card {
        border-radius: 22px;
        padding: 22px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }
}