html {
    min-height: 100%;
    background:
        radial-gradient(circle at top, #2f64c7 0%, #1a4393 38%, #0d2559 100%);
    color: #ffffff;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

a {
    color: inherit;
}

.page-shell {
    flex: 1;
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 40px;
    box-sizing: border-box;
}

.topbar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 28px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(280px, 0.98fr);
    gap: 36px;
    align-items: center;
    padding: 40px;
    border-radius: 28px;
    background: rgba(7, 22, 56, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 24px 60px rgba(3, 13, 35, 0.28);
    backdrop-filter: blur(12px);
}

.hero-copy {
    text-align: left;
}

.brand-mark {
    width: clamp(180px, 26vw, 300px);
    max-width: 100%;
    display: block;
}

.main-title {
    margin: 0;
    font-size: clamp(2.9rem, 2.08rem + 2.35vw, 4.8rem);
    line-height: 0.92;
    font-weight: 900;
    letter-spacing: -0.05em;
}

.brand-title {
    display: inline-block;
    position: relative;
    color: #7df0a5;
    background: linear-gradient(180deg, #e5fff0 0%, #8df8b6 32%, #33d775 58%, #13994b 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow:
        0 18px 34px rgba(20, 173, 82, 0.18),
        0 6px 18px rgba(7, 32, 17, 0.22);
    filter: drop-shadow(0 14px 28px rgba(37, 204, 101, 0.14));
}

.brand-title::after {
    content: "";
    display: block;
    width: 46%;
    height: 7px;
    margin-top: 12px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(151, 255, 188, 1), rgba(56, 218, 112, 0.74), rgba(56, 218, 112, 0));
    box-shadow: 0 10px 20px rgba(48, 210, 106, 0.24);
}

.brand-title::before {
    content: "";
    position: absolute;
    inset: 14% -4% auto;
    height: 42%;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(89, 255, 166, 0.16), rgba(89, 255, 166, 0));
    filter: blur(16px);
    z-index: -1;
}

.brand-title-cn {
    font-weight: 900;
    letter-spacing: -0.08em;
}

.brand-title-en {
    letter-spacing: -0.065em;
    text-transform: none;
    transform: skewX(-7deg);
}

.main-text {
    margin-top: 18px;
    font-size: clamp(1.5rem, 1.2rem + 1vw, 2.2rem);
    line-height: 1.25;
    font-weight: 700;
}

.sub-text {
    margin-top: 14px;
    max-width: 580px;
    color: rgba(255, 255, 255, 0.82);
    font-size: clamp(0.98rem, 0.9rem + 0.28vw, 1.15rem);
    line-height: 1.75;
}

.feature-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
}

.feature-chip {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
}

.hero-visual {
    position: relative;
    min-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    position: relative;
    z-index: 1;
    width: min(100%, 430px);
    display: block;
    margin: 0 auto;
    border-radius: 28px;
    box-shadow:
        0 24px 46px rgba(4, 12, 28, 0.28),
        0 0 0 1px rgba(255, 255, 255, 0.08);
}

.download-panel {
    margin-top: 26px;
    padding: 26px;
    border-radius: 24px;
    background: rgba(7, 22, 56, 0.24);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.watch-panel {
    position: relative;
    margin-top: 26px;
    display: grid;
    grid-template-columns: minmax(0, 0.88fr) minmax(380px, 1.12fr);
    gap: 36px;
    align-items: center;
    padding: 34px 36px;
    border-radius: 30px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.13) 0%, rgba(255, 255, 255, 0.05) 42%, rgba(6, 17, 46, 0.06) 100%);
    box-shadow: 0 24px 56px rgba(3, 13, 35, 0.2);
    overflow: hidden;
}

.watch-panel::before {
    content: "";
    position: absolute;
    width: 280px;
    height: 280px;
    right: -100px;
    top: -120px;
    border-radius: 50%;
    background: rgba(112, 201, 255, 0.12);
    filter: blur(8px);
}

.watch-panel::after {
    content: "";
    position: absolute;
    width: 320px;
    height: 320px;
    left: 44%;
    bottom: -210px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    filter: blur(8px);
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.section-title {
    margin: 16px 0 0;
    font-size: clamp(1.9rem, 1.45rem + 1.15vw, 2.7rem);
    line-height: 1.12;
    font-weight: 800;
    max-width: 11em;
}

.section-desc {
    margin: 14px 0 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.02rem;
    line-height: 1.85;
    max-width: 34em;
}

.watch-points {
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 12px;
}

.watch-points li {
    padding: 0 0 0 18px;
    border-radius: 0;
    background: transparent;
    border: 0;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.6;
    position: relative;
}

.watch-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #82daff;
    box-shadow: 0 0 0 6px rgba(130, 218, 255, 0.14);
}

.watch-preview {
    position: relative;
    z-index: 1;
    min-width: 0;
}

.watch-carousel {
    position: relative;
    min-height: 560px;
    padding: 18px 0 60px;
    border-radius: 30px;
    overflow: hidden;
}

.watch-slide {
    position: absolute;
    top: 18px;
    left: 50%;
    width: min(100%, 320px);
    opacity: 0;
    transform: translateX(-50%) translateY(18px) scale(0.96);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.watch-slide:nth-child(1) {
    transform-origin: center bottom;
}

.watch-slide:nth-child(2) {
    transform-origin: center bottom;
}

.watch-slide.is-active {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
}

.watch-image {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    margin: 0 auto;
    filter: drop-shadow(0 26px 42px rgba(0, 0, 0, 0.34));
}

.watch-caption {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    white-space: nowrap;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.92);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    backdrop-filter: blur(10px);
}

.watch-dots {
    position: absolute;
    left: 50%;
    bottom: 54px;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
}

.watch-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.28);
    transition: transform 0.25s ease, background-color 0.25s ease;
}

.watch-dot.is-active {
    background: #82daff;
    transform: scale(1.15);
}

.download-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.download-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
}

.download-subtitle {
    margin: 6px 0 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
}

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

.button {
    border: 0;
    padding: 16px 18px;
    text-align: left;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 18px;
    justify-content: flex-start;
    position: relative;
    min-height: 64px;
    box-sizing: border-box;
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
    box-shadow: 0 14px 24px rgba(0, 0, 0, 0.16);
}

.button:hover {
    transform: translateY(-2px);
}

.button-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.button-label {
    font-size: 1rem;
}

.button-note {
    font-size: 12px;
    font-weight: 500;
    opacity: 0.8;
}

.iosbutton {
    background-color: #ffffff;
    color: #111111;
}

.andbutton,
.appmallbutton {
    background: linear-gradient(135deg, #3abf6a 0%, #22874a 100%);
    color: #ffffff;
}

.googlebutton {
    background: linear-gradient(135deg, #07a66c 0%, #067757 100%);
    color: #ffffff;
}

.harbutton {
    background: linear-gradient(135deg, #d71336 0%, #9f0f2b 100%);
    color: #ffffff;
}

.icon {
    width: 26px;
    height: 26px;
    object-fit: contain;
    flex-shrink: 0;
}

.qrcode {
    position: absolute;
    left: 18px;
    bottom: calc(100% + 14px);
    display: none;
    color: #111111;
    background-color: #ffffff;
    width: 200px;
    height: 200px;
    padding: 8px;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.24);
}

.external-tip {
    margin-top: 16px;
    padding: 13px 16px;
    border-radius: 16px;
    background: rgba(245, 108, 108, 0.15);
    border: 1px solid rgba(245, 108, 108, 0.35);
    color: #ffd2d2;
    font-weight: 600;
    display: none;
}

.import-block {
    margin-top: 26px;
    padding: 26px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    text-align: center;
    display: none;
}

.import-title {
    margin-bottom: 6px;
    font-size: 18px;
    font-weight: 700;
}

.import-desc {
    margin-bottom: 18px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.76);
}

.import-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    color: #111111;
    text-decoration: none;
    background-color: #ffffff;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.18);
}

.copyright {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    padding: 0 0 28px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    text-align: center;
}

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

.copyright a:hover {
    color: #ffffff;
}

@media (min-width: 1000px) {
    .iosbutton:hover .qrcode,
    .andbutton:hover .qrcode,
    .harbutton:hover .qrcode,
    .googlebutton:hover .qrcode,
    .appmallbutton:hover .qrcode {
        display: block;
    }
}

@media (max-width: 900px) {
    .page-shell {
        width: min(100% - 24px, 1120px);
        padding-top: 18px;
    }

    .hero-panel {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 26px 20px;
    }

    .hero-copy {
        text-align: center;
    }

    .brand-mark {
        margin: 0 auto;
    }

    .sub-text {
        margin-left: auto;
        margin-right: auto;
    }

    .feature-list {
        justify-content: center;
    }

    .download-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .watch-panel {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 26px 22px;
    }

    .watch-carousel {
        min-height: 520px;
    }

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

@media (max-width: 560px) {
    .topbar {
        justify-content: center;
        margin-bottom: 18px;
    }

    .lang-switch {
        width: 100%;
        justify-content: center;
    }

    .hero-panel {
        padding: 22px 16px;
        border-radius: 24px;
    }

    .download-panel,
    .import-block {
        padding: 18px 16px;
        border-radius: 20px;
    }

    .watch-panel {
        padding: 22px 16px;
        border-radius: 24px;
    }

    .watch-carousel {
        min-height: 430px;
        padding-bottom: 52px;
    }

    .watch-slide {
        width: min(100%, 250px);
    }

    .watch-dots {
        bottom: 58px;
    }

    .watch-caption {
        bottom: 10px;
    }

    .hero-image {
        border-radius: 22px;
    }

    .button {
        min-height: 60px;
        padding: 15px 16px;
        border-radius: 16px;
    }

    .qrcode {
        left: 50%;
        transform: translateX(-50%);
    }

    .copyright {
        width: min(100% - 24px, 1120px);
        padding-bottom: 22px;
        gap: 10px 18px;
        font-size: 13px;
    }
}