:root {
    --p: #6557ff;
    --p2: #8258ff;
    --c: #18c7c1;
    --ink: #171a2c;
    --muted: #697086;
    --bg: #f7f8fd;
    --line: #e8eaf3;
    --white: #fff;
    --dark: #151827;
    --r: 22px;
    --shadow: 0 24px 70px rgba(39, 43, 91, .12)
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

html {
    scroll-behavior: smooth
}

body {
    font-family: Inter, "Noto Sans SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    line-height: 1.7;
    overflow-x: hidden
}

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

.wrap {
    width: min(1180px, calc(100% - 40px));
    margin: auto
}

.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 76px;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line)
}

.nav-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between
}

.logo {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 21px;
    font-weight: 900
}

.logo-mark {
    position: relative;
    width: 30px;
    height: 30px;
    background-image: url('../logo.png'); 
    /* 让图片适应容器大小，保持比例并居中 */
    background-size: cover; 
    background-position: center;
    background-repeat: no-repeat;
}


.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
    font-size: 15px;
    font-weight: 650;
    color: #4d5569
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--p)
}

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 14px;
    border: 0;
    transition: .25s
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--p), var(--p2));
    box-shadow: 0 12px 28px rgba(101, 87, 255, .25)
}

.btn-primary:hover,
.btn-dark:hover {
    transform: translateY(-2px)
}

.btn-ghost {
    background: #fff;
    border: 1px solid var(--line)
}

.btn-white {
    color: var(--p);
    background: #fff
}

.btn-dark {
    color: #fff;
    background: var(--dark)
}

.menu {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 11px;
    font-size: 22px
}

.hero {
    position: relative;
    min-height: 680px;
    padding: 100px 0 80px;
    overflow: hidden;
    background: radial-gradient(circle at 8% 15%, rgba(101, 87, 255, .18), transparent 31%), radial-gradient(circle at 94% 22%, rgba(24, 199, 193, .13), transparent 28%), linear-gradient(180deg, #f8f8ff 0, #fff 90%)
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.02fr .98fr;
    gap: 64px;
    align-items: center
}

.badge {
    display: inline-flex;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--p);
    background: rgba(101, 87, 255, .1);
    font-size: 14px;
    font-weight: 800
}

.hero h1 {
    font-size: clamp(44px, 5.7vw, 70px);
    line-height: 1.08;
    letter-spacing: -2.5px;
    margin: 22px 0
}

.gradient {
    background: linear-gradient(135deg, var(--p), #1fb6aa);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent
}

.hero p {
    font-size: 18px;
    color: var(--muted);
    max-width: 610px
}

.actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 32px
}

.hero-notes {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    color: #737a8e;
    font-size: 13px;
    margin-top: 24px
}

.hero-notes span:before {
    content: "✓";
    color: var(--c);
    font-weight: 900;
    margin-right: 6px
}

.mock {
    position: relative;
    min-height: 500px;
    display: grid;
    place-items: center
}

.window {
    width: 100%;
    max-width: 570px;
    padding: 13px;
    background: #fff;
    border: 1px solid #e1e4f0;
    border-radius: 25px;
    box-shadow: 0 38px 90px rgba(40, 44, 95, .2);
    transform: perspective(1100px) rotateY(-4deg) rotateX(2deg)
}

.window-top {
    height: 38px;
    display: flex;
    align-items: center;
    gap: 7px
}

.dot {
    width: 10px;
    height: 10px;
    background: #d4d7e6;
    border-radius: 50%
}

.bar {
    flex: 1;
    height: 24px;
    background: #f0f2f7;
    border-radius: 7px;
    margin-left: 11px
}

.window-body {
    display: grid;
    grid-template-columns: 142px 1fr;
    min-height: 375px;
    border-radius: 16px;
    overflow: hidden;
    background: #f7f8fc
}

.sidebar {
    padding: 22px 12px;
    background: #191d2d;
    color: #8d95aa;
    font-size: 12px
}

.side-title {
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    margin-bottom: 22px
}

.side-item {
    padding: 8px 9px;
    border-radius: 8px;
    margin-bottom: 6px
}

.side-item.active {
    background: rgba(112, 103, 255, .34);
    color: #fff
}

.dash {
    padding: 21px
}

.dash-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px
}

.mini {
    font-size: 11px;
    padding: 7px 10px;
    color: #fff;
    background: var(--p);
    border-radius: 8px
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 9px;
    margin-bottom: 14px
}

.stat {
    padding: 12px;
    border: 1px solid #eceef5;
    background: #fff;
    border-radius: 11px
}

.stat small {
    font-size: 9px;
    color: #9298aa
}

.stat b {
    display: block;
    font-size: 18px
}

.profile {
    display: grid;
    grid-template-columns: 32px 1fr auto;
    gap: 9px;
    align-items: center;
    background: #fff;
    border-radius: 10px;
    padding: 9px;
    margin-bottom: 8px;
    font-size: 10px
}

.avatar {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: linear-gradient(135deg, #7779f7, #b4b5ff)
}

.ok {
    color: #10a493
}

.section {
    padding: 100px 0
}

.soft {
    background: var(--bg)
}

.section-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 52px
}

.section-head h2,
.page-hero h1 {
    font-size: clamp(34px, 4vw, 50px);
    line-height: 1.22;
    margin: 16px 0
}

.section-head p,
.page-hero p {
    color: var(--muted)
}

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

.card {
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: var(--r);
    background: #fff;
    transition: .28s
}

.card:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow)
}

.icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    color: #fff;
    background: linear-gradient(135deg, var(--p), #8c69ff);
    font-size: 23px;
    margin-bottom: 22px
}

.card:nth-child(2n) .icon {
    background: linear-gradient(135deg, #10a99d, #31d0c3)
}

.card h3 {
    font-size: 20px;
    margin-bottom: 10px
}

.card p {
    font-size: 14px;
    color: var(--muted)
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center
}

.split h2 {
    font-size: clamp(34px, 4vw, 49px);
    line-height: 1.22;
    margin: 18px 0
}

.split p {
    color: var(--muted)
}

.checks {
    display: grid;
    gap: 15px;
    margin: 28px 0
}

.check {
    display: flex;
    gap: 13px
}

.check i {
    font-style: normal;
    flex: 0 0 25px;
    height: 25px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--c);
    color: #fff;
    font-weight: 900
}

.check b {
    display: block
}

.check span {
    font-size: 13px;
    color: var(--muted)
}

.visual {
    position: relative;
    min-height: 490px;
    display: grid;
    place-items: center
}

.phone {
    width: 230px;
    height: 455px;
    padding: 12px;
    border-radius: 38px;
    background: #151927;
    box-shadow: 0 35px 75px rgba(25, 30, 65, .28);
    transform: rotate(-5deg)
}

.phone-screen {
    height: 100%;
    padding: 27px 16px;
    border-radius: 29px;
    color: #fff;
    background: linear-gradient(155deg, #6a63f7, #1bb8ac)
}

.apps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 75px
}

.app {
    height: 52px;
    border-radius: 14px;
    background: rgba(255, 255, 255, .88)
}

.small-card {
    position: absolute;
    width: 220px;
    padding: 17px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 17px;
    box-shadow: var(--shadow)
}

.small-card.left {
    left: 0;
    top: 85px
}

.small-card.right {
    right: 0;
    bottom: 65px
}

.progress {
    height: 7px;
    background: #edf0f7;
    border-radius: 999px;
    overflow: hidden;
    margin-top: 9px
}

.progress span {
    display: block;
    width: 76%;
    height: 100%;
    background: linear-gradient(90deg, var(--p), var(--c))
}

.dark-panel {
    padding: 34px;
    border-radius: 30px;
    color: #fff;
    background: linear-gradient(145deg, #171b30, #272d4b);
    box-shadow: 0 35px 80px rgba(21, 27, 58, .28)
}

.shield {
    width: 90px;
    height: 105px;
    display: grid;
    place-items: center;
    margin: 5px auto 28px;
    background: linear-gradient(160deg, #7771ff, #22bdaf);
    clip-path: polygon(50% 0, 92% 18%, 84% 70%, 50% 100%, 16% 70%, 8% 18%);
    font-size: 40px
}

.dark-row {
    display: flex;
    justify-content: space-between;
    padding: 13px 15px;
    margin-top: 10px;
    border-radius: 11px;
    background: rgba(255, 255, 255, .06);
    font-size: 13px
}

.dark-row b {
    color: #66e6d8
}

.page-hero {
    padding: 100px 0 76px;
    text-align: center;
    background: radial-gradient(circle at 20% 20%, rgba(101, 87, 255, .14), transparent 30%), linear-gradient(180deg, #f7f7ff, #fff)
}

.page-hero p {
    max-width: 720px;
    margin: auto
}

.bread {
    font-size: 13px;
    color: var(--p);
    font-weight: 800
}

.price-grid,
.download-grid,
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px
}

.price,
.download-card,
.article {
    padding: 32px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #fff
}

.price.hot {
    border: 2px solid var(--p);
    box-shadow: var(--shadow)
}

.amount {
    font-size: 44px;
    font-weight: 900;
    margin: 16px 0
}

.amount small {
    font-size: 14px;
    color: var(--muted)
}

.price ul {
    list-style: none;
    display: grid;
    gap: 11px;
    margin: 25px 0;
    color: #596176;
    font-size: 14px
}

.price li:before {
    content: "✓";
    color: var(--c);
    font-weight: 900;
    margin-right: 8px
}

.download-card {
    text-align: center
}

.os {
    width: 68px;
    height: 68px;
    display: grid;
    place-items: center;
    border-radius: 20px;
    background: rgba(101, 87, 255, .1);
    color: var(--p);
    font-size: 30px;
    margin: 0 auto 20px
}

.download-card p {
    color: var(--muted);
    font-size: 13px;
    margin: 8px 0 22px
}

.article {
    padding: 0;
    overflow: hidden
}

.cover {
    height: 190px;
    background: linear-gradient(135deg, #5d59ed, #20bcae)
}

.article:nth-child(2n) .cover {
    background: linear-gradient(135deg, #20253d, #6771de)
}

.article-body {
    padding: 23px
}

.meta {
    font-size: 12px;
    color: var(--p);
    font-weight: 800
}

.article h3 {
    font-size: 18px;
    line-height: 1.5;
    margin: 8px 0
}

.article p {
    font-size: 13px;
    color: var(--muted)
}

.cta {
    padding: 0 0 100px
}

.cta-box {
    text-align: center;
    padding: 62px 35px;
    border-radius: 30px;
    color: #fff;
    background: linear-gradient(135deg, #5550e8, #795df4 55%, #18aa9f)
}

.cta-box h2 {
    font-size: clamp(31px, 4vw, 47px)
}

.cta-box p {
    color: rgba(255, 255, 255, .82);
    margin: 10px auto 25px
}

.footer {
    padding: 70px 0 25px;
    background: #171a2a;
    color: #adb3c5
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: 45px
}

.footer .logo {
    color: #fff
}

.footer-brand p {
    font-size: 13px;
    margin-top: 17px
}

.footer h4 {
    color: #fff;
    margin-bottom: 16px
}

.footer-links {
    display: grid;
    gap: 10px;
    font-size: 13px
}

.copy {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 45px;
    padding-top: 22px;
    font-size: 12px
}

@media(max-width:1000px) {
    .nav-links {
        position: fixed;
        display: none;
        top: 76px;
        left: 20px;
        right: 20px;
        padding: 22px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: 16px
    }

    .nav-links.open {
        display: grid;
        gap: 17px
    }

    .menu {
        display: block
    }

    .nav-actions .btn-ghost {
        display: none
    }

    .hero-grid,
    .split {
        grid-template-columns: 1fr
    }

    .hero-copy {
        text-align: center
    }

    .actions,
    .hero-notes {
        justify-content: center
    }

    .cards,
    .article-grid,
    .download-grid {
        grid-template-columns: repeat(2, 1fr)
    }

    .price-grid {
        grid-template-columns: 1fr
    }

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

@media(max-width:650px) {
    .wrap {
        width: min(100% - 28px, 1180px)
    }

    .nav-actions .btn-primary {
        display: none
    }

    .hero h1 {
        font-size: 41px
    }

    .window {
        transform: none
    }

    .window-body {
        grid-template-columns: 95px 1fr
    }

    .stats {
        grid-template-columns: 1fr
    }

    .stat:nth-child(n+2) {
        display: none
    }

    .cards,
    .article-grid,
    .download-grid {
        grid-template-columns: 1fr
    }

    .section {
        padding: 72px 0
    }

    .visual {
        transform: scale(.82);
        margin: -45px 0
    }

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

    .footer-brand {
        grid-column: 1/-1
    }
}