html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 14% 18%, rgba(99, 182, 255, 0.24), transparent 30rem),
        radial-gradient(circle at 85% 14%, rgba(255, 255, 255, 0.82), transparent 21rem),
        radial-gradient(circle at 52% 100%, rgba(141, 223, 255, 0.18), transparent 36rem),
        linear-gradient(180deg, #dcebfb 0%, #eaf4ff 28%, #f6fbff 64%, #eef4fb 100%);
    color: #10233f;
    font-family: "Source Han Sans CN", "PingFang SC", "Microsoft YaHei", sans-serif;
}

@font-face {
    font-family: "PingFang SC-Medium";
    src: url("../../font/SourceHanSansCN-Medium.otf");
}

@font-face {
    font-family: "Source Han Sans SC-Bold";
    src: url("../../font/SourceHanSansCN-Medium.otf");
}

@font-face {
    font-family: "PingFang SC";
    src: url("../../font/SourceHanSansCN-Regular.woff2");
}

@font-face {
    font-family: "Source Han Sans CN-Regular";
    src: url("../../font/SourceHanSansCN-Regular.woff2");
}

@font-face {
    font-family: "Source Han Sans CN";
    src: url("../../font/SourceHanSansCN-Regular.woff2");
}

body::-webkit-scrollbar {
    width: 0;
    height: 0;
}

* {
    box-sizing: border-box;
}

#app {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
}

.ambient-layer {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
}

.ambient-orb-one {
    width: 36rem;
    height: 36rem;
    top: -12rem;
    left: -8rem;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.95), rgba(181, 228, 255, 0.6) 34%, rgba(71, 154, 255, 0.16) 70%, transparent 80%);
    filter: blur(10px);
}

.ambient-orb-two {
    width: 32rem;
    height: 32rem;
    top: 6rem;
    right: -8rem;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.92), rgba(196, 237, 255, 0.56) 34%, rgba(61, 188, 255, 0.14) 72%, transparent 82%);
    filter: blur(12px);
}

.ambient-orb-three {
    width: 28rem;
    height: 28rem;
    bottom: -8rem;
    left: 42%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.85), rgba(216, 244, 255, 0.48) 36%, rgba(123, 203, 255, 0.14) 74%, transparent 84%);
    filter: blur(14px);
}

.ambient-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
    background-size: 96px 96px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 80%);
    opacity: 0.24;
}

.page-shell,
.header-shell,
.footer-inner {
    width: min(1260px, calc(100vw - 40px));
    margin: 0 auto;
}

.page-shell,
.footer-view,
.header-view {
    position: relative;
    z-index: 1;
}

.header-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.header-view.is-scrolled {
    background: rgba(255, 255, 255, 0.24);
    box-shadow: 0 18px 48px rgba(48, 89, 150, 0.12);
    backdrop-filter: blur(24px) saturate(155%);
    -webkit-backdrop-filter: blur(24px) saturate(155%);
}

.header-shell {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0;
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
    cursor: pointer;
}

.logo-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.52),
        0 14px 34px rgba(0, 116, 255, 0.16);
}

.project-name-text {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.1;
    color: #0b63e6;
}

.brand-subtitle {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.4;
    color: rgba(16, 35, 63, 0.54);
}

.nav-group {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.home-page-view,
.about-us-view {
    cursor: pointer;
}

.top-menu-text {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.3;
    color: rgba(22, 49, 84, 0.9);
}

.menu-underline-active {
    width: calc(100% - 10px);
    height: 3px;
    margin: 8px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #0b63e6 0%, #50b8ff 100%);
}

#qrcode {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qrcode-desc {
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
    color: rgba(16, 35, 63, 0.65);
}

.page-shell {
    padding-top: 112px;
    padding-bottom: 48px;
}

.glass-panel {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.46);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.16));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.76),
        0 24px 60px rgba(41, 89, 150, 0.12);
    backdrop-filter: blur(34px) saturate(160%);
    -webkit-backdrop-filter: blur(34px) saturate(160%);
}

.glass-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.44), rgba(255, 255, 255, 0.06) 44%, rgba(255, 255, 255, 0.16));
    pointer-events: none;
}

.glass-panel::after {
    content: "";
    position: absolute;
    inset: 1px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: inherit;
    pointer-events: none;
}

.top-view,
.capability-view,
.about-view {
    position: relative;
    overflow: hidden;
}

.top-view {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(380px, 0.85fr);
    gap: 24px;
    align-items: center;
    min-height: 700px;
    margin-top: 18px;
    padding: 56px 40px 40px;
    border-radius: 24px;
}

.top_bg_texture,
.top_steel_pipe_up,
.top_circular,
.top_phone_bg,
.top_steel_pipe,
.bottom_angle,
.bottom_semicircle {
    position: absolute;
    pointer-events: none;
    user-select: none;
}

.top_bg_texture {
    width: 520px;
    top: 10px;
    left: -120px;
    opacity: 0.34;
    mix-blend-mode: screen;
}

.top_steel_pipe_up {
    width: 128px;
    top: 70px;
    left: -20px;
    opacity: 0.7;
}

.top_circular {
    width: 200px;
    top: 56px;
    right: -50px;
    opacity: 0.48;
}

.top_phone_bg {
    width: 520px;
    right: -50px;
    bottom: 120px;
    opacity: 0.32;
    mix-blend-mode: screen;
}

.top_steel_pipe {
    width: 96px;
    right: -10px;
    bottom: 40px;
    opacity: 0.54;
}

.hero-copy,
.hero-visual,
.download-section,
.section-heading,
.capability-grid,
.about-layout {
    position: relative;
    z-index: 1;
}

.hero-copy {
    padding-top: 24px;
    padding-right: 12px;
}

.eyebrow-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.eyebrow-badge {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 16px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.22));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px) saturate(150%);
    -webkit-backdrop-filter: blur(18px) saturate(150%);
    color: #0b63e6;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-title {
    margin: 24px 0 0;
    font-size: clamp(48px, 6vw, 76px);
    line-height: 1.02;
    letter-spacing: -0.03em;
    color: #0d1d36;
    text-shadow: 0 10px 32px rgba(255, 255, 255, 0.55);
}

.project-subtitle {
    margin-top: 24px;
    max-width: 620px;
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.28;
    font-weight: 700;
    color: #11294a;
}

.project-desc {
    max-width: 590px;
    margin-top: 18px;
    font-size: 17px;
    line-height: 1.8;
    color: rgba(16, 35, 63, 0.66);
}

.download-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 36px;
}

.ios-down-btn,
.android-down-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 188px;
    height: 60px;
    padding: 0 26px 0 56px;
    border: 1px solid rgba(255, 255, 255, 0.48);
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    backdrop-filter: blur(18px) saturate(165%);
    -webkit-backdrop-filter: blur(18px) saturate(165%);
}

.ios-down-btn:hover,
.android-down-btn:hover {
    transform: translateY(-2px);
}

.ios-down-btn {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.08)),
        linear-gradient(135deg, rgba(12, 101, 229, 0.92) 0%, rgba(55, 178, 255, 0.72) 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.58),
        0 18px 32px rgba(11, 99, 230, 0.22);
}

.android-down-btn {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(255, 255, 255, 0.24));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.84),
        0 12px 28px rgba(18, 49, 96, 0.08);
}

.down-platform-icon {
    position: absolute;
    top: 50%;
    left: 22px;
    width: 20px;
    height: 24px;
    transform: translateY(-50%);
}

.down-btn-text {
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.apple-text {
    color: #ffffff;
}

.android-text {
    color: #0b63e6;
}

.hero-meta {
    display: grid;
    gap: 8px;
    margin-top: 30px;
}

.app-info-text {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(16, 35, 63, 0.58);
}

.feature-points {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 28px;
}

.feature-point,
.about-fact,
.capability-card {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.44);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.56), rgba(255, 255, 255, 0.18));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.78),
        0 18px 44px rgba(25, 64, 123, 0.08);
    backdrop-filter: blur(24px) saturate(155%);
    -webkit-backdrop-filter: blur(24px) saturate(155%);
}

.feature-point::before,
.about-fact::before,
.capability-card::before,
.about-media-card::before,
.about-copy-card::before,
.footer-inner::before,
.download-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.04) 45%, rgba(255, 255, 255, 0.18));
    pointer-events: none;
}

.feature-point {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 136px;
    padding: 20px;
    border-radius: 14px;
}

.feature-value,
.capability-title,
.about-fact-value {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.3;
    color: #10233f;
}

.feature-label,
.capability-text,
.about-fact-label {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(16, 35, 63, 0.66);
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
}

.device-stage {
    position: relative;
    width: min(100%, 520px);
    min-height: 560px;
    padding: 12px 18px 20px;
}

.device-stage::before {
    content: "";
    position: absolute;
    inset: 24px 0 56px 72px;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.58) 0%, rgba(228, 242, 255, 0.22) 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.74),
        0 32px 72px rgba(29, 78, 150, 0.16);
    backdrop-filter: blur(34px) saturate(165%);
    -webkit-backdrop-filter: blur(34px) saturate(165%);
}

.device-stage::after {
    content: "";
    position: absolute;
    inset: auto 26px 18px 96px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(38, 92, 166, 0.18), transparent 70%);
    filter: blur(24px);
}

.device-panel {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    padding-top: 14px;
}

.top_phone_photo {
    width: min(320px, 78%);
    height: auto;
    filter: drop-shadow(0 26px 38px rgba(19, 56, 111, 0.24));
}

.download-section {
    position: relative;
    z-index: 1;
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
    gap: 18px;
    align-items: center;
    margin-top: 8px;
    padding: 18px 20px;
    border-radius: 18px;
}

.download-section-head {
    padding: 0 4px;
}

.download-section-title {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
    color: #10233f;
}

.download-section-subtitle {
    margin-top: 8px;
    max-width: 340px;
    font-size: 14px;
    line-height: 1.7;
    color: rgba(16, 35, 63, 0.62);
}

.download-panels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.download-card {
    position: relative;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(255, 255, 255, 0.28));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 18px 34px rgba(20, 64, 130, 0.14);
    backdrop-filter: blur(28px) saturate(165%);
    -webkit-backdrop-filter: blur(28px) saturate(165%);
    cursor: pointer;
}

.download-card-header,
.download-card-tip,
.download-card-qr {
    position: relative;
    z-index: 1;
}

.download-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.download-card-icon {
    width: 18px;
    height: 18px;
}

.download-card-title {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    color: #10233f;
}

.download-card-subtitle {
    margin-top: 3px;
    font-size: 12px;
    line-height: 1.3;
    color: rgba(16, 35, 63, 0.56);
}

.download-card-qr {
    display: block;
    width: 128px;
    height: 128px;
    margin: 10px auto 0;
    border-radius: 10px;
    background: rgba(245, 249, 255, 0.88);
}

.download-card-tip {
    margin-top: 10px;
    font-size: 12px;
    line-height: 1.5;
    text-align: center;
    color: rgba(16, 35, 63, 0.62);
}

.capability-view,
.about-view {
    margin-top: 28px;
    padding: 82px 42px;
    border-radius: 22px;
}

.capability-view {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.44) 0%, rgba(238, 246, 255, 0.16) 100%);
}

.section-heading {
    text-align: center;
    margin-bottom: 42px;
}

.section-heading-left {
    text-align: left;
}

.title-below {
    font-size: clamp(32px, 5vw, 64px);
    font-weight: 800;
    line-height: 1;
    color: rgba(11, 99, 230, 0.1);
    text-transform: uppercase;
}

.title-above {
    position: relative;
    margin-top: -20px;
    font-size: 34px;
    font-weight: 700;
    line-height: 1.2;
    color: #10233f;
}

.section-lead {
    width: min(720px, 100%);
    margin: 20px auto 0;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(16, 35, 63, 0.68);
}

.section-heading-left .section-lead {
    margin-left: 0;
    margin-right: 0;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.capability-card {
    min-height: 220px;
    padding: 28px;
    border-radius: 16px;
}

.capability-card:nth-child(2) {
    transform: translateY(18px);
}

.about-view {
    padding-bottom: 48px;
}

.bottom_angle {
    width: 82px;
    top: 160px;
    left: -10px;
    opacity: 0.42;
}

.bottom_semicircle {
    width: 102px;
    top: 220px;
    right: -18px;
    opacity: 0.42;
}

.about-layout {
    display: grid;
    grid-template-columns: minmax(360px, 0.95fr) minmax(0, 1.05fr);
    gap: 28px;
    align-items: center;
}

.about-media-card,
.about-copy-card {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.18));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.76),
        0 22px 56px rgba(25, 64, 123, 0.09);
    backdrop-filter: blur(24px) saturate(150%);
    -webkit-backdrop-filter: blur(24px) saturate(150%);
}

.about-media-card {
    padding: 16px;
}

.building-icon {
    display: block;
    width: 100%;
    border-radius: 12px;
}

.about-copy-card {
    padding: 34px 32px;
}

.about-text {
    position: relative;
    z-index: 1;
    font-size: 16px;
    line-height: 1.95;
    color: rgba(16, 35, 63, 0.72);
}

.about-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 28px;
}

.about-fact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 128px;
    padding: 18px;
    border-radius: 14px;
}

.footer-view {
    padding: 0 0 48px;
}

.footer-inner {
    position: relative;
    padding: 24px 24px 30px;
    border: 1px solid rgba(255, 255, 255, 0.46);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.56), rgba(255, 255, 255, 0.24));
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        0 16px 42px rgba(20, 64, 130, 0.08);
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
}

.agreement-view,
.auth-view {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    text-align: center;
}

.agreement-view {
    font-size: 14px;
    font-weight: 700;
    color: #0b63e6;
}

.agreement-view a,
.filing-link {
    color: #0b63e6;
    text-decoration: none;
}

.auth-view {
    margin-top: 14px;
    font-size: 13px;
    line-height: 1.8;
    color: rgba(16, 35, 63, 0.58);
}

@media (max-width: 1100px) {
    .top-view,
    .about-layout {
        grid-template-columns: 1fr;
    }

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

    .device-stage {
        width: min(100%, 560px);
        min-height: 500px;
    }

    .feature-points,
    .capability-grid,
    .about-facts {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .capability-card:nth-child(2) {
        transform: none;
    }
}

@media (max-width: 820px) {
    .page-shell,
    .header-shell,
    .footer-inner {
        width: calc(100vw - 28px);
        max-width: 1180px;
    }

    .header-shell {
        flex-wrap: wrap;
        gap: 14px;
        padding: 14px 0;
    }

    .nav-group {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        margin-left: 0;
    }

    .top-view {
        min-height: auto;
        padding: 42px 26px 64px;
    }

    .download-section {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 12px;
    }

    .project-title {
        font-size: 48px;
    }

    .project-subtitle {
        font-size: 26px;
    }

    .download-actions {
        display: flex;
        align-items: stretch;
        flex-direction: column;
    }

    .feature-points,
    .capability-grid,
    .about-facts {
        grid-template-columns: 1fr;
    }

    .ios-down-btn,
    .android-down-btn {
        width: 100%;
    }

    .download-section-head {
        padding-top: 0;
    }

    .download-panels {
        grid-template-columns: 1fr;
    }

    .device-stage {
        min-height: auto;
        padding: 18px 0 0;
    }

    .device-stage::before {
        inset: 24px 0 88px 0;
    }

    .capability-view,
    .about-view {
        padding: 62px 22px;
    }

    .about-copy-card {
        padding: 26px 22px;
    }

    .title-above {
        margin-top: -12px;
        font-size: 28px;
    }

    .section-lead,
    .about-text {
        font-size: 15px;
    }
}

@media (max-width: 560px) {
    html {
        font-size: 15px;
    }

    .header-shell,
    .page-shell,
    .footer-inner {
        width: calc(100vw - 20px);
    }

    .brand-block {
        gap: 12px;
    }

    .logo-icon {
        width: 44px;
        height: 44px;
    }

    .project-name-text {
        font-size: 20px;
    }

    .brand-subtitle {
        display: none;
    }

    .top_bg_texture,
    .top_steel_pipe_up,
    .top_circular,
    .top_phone_bg,
    .top_steel_pipe,
    .bottom_angle,
    .bottom_semicircle,
    .ambient-grid {
        display: none !important;
    }

    .page-shell {
        padding-top: 108px;
    }

    .top-view {
        padding-left: 20px;
        padding-right: 20px;
        border-radius: 20px;
    }

    .download-section-title {
        font-size: 24px;
    }

    .project-title {
        font-size: 40px;
    }

    .project-subtitle {
        font-size: 22px;
    }

    .project-desc {
        font-size: 15px;
    }

    .feature-point,
    .capability-card,
    .about-fact {
        min-height: auto;
    }

    .footer-inner {
        padding-left: 16px;
        padding-right: 16px;
    }
}