@charset "UTF-8";

:root {
    --bg: #0a0f0d;
    --bg-soft: #0f1613;
    --card: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --text: #e8f0eb;
    --muted: #8a9a90;
    --green: #4ade80;
    --green-deep: #22c55e;
    --cyan: #22d3ee;
    --grad: linear-gradient(135deg, #4ade80, #22d3ee);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    --radius: 18px;
    --maxw: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    border: none;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--grad);
    color: #052014;
    padding: 16px 34px;
    font-size: 16px;
    box-shadow: 0 8px 28px rgba(74, 222, 128, 0.28);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 38px rgba(74, 222, 128, 0.4);
}

.btn-ghost {
    background: transparent;
    color: #fff;
    padding: 15px 32px;
    font-size: 16px;
    border: 1px solid rgba(255, 255, 255, 0.22);
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-3px);
}

.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.section {
    padding: 100px 0;
}

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.24);
    color: var(--green);
    font-size: 13px;
    letter-spacing: 2px;
    margin-bottom: 18px;
}

.section-title {
    font-size: clamp(30px, 4vw, 42px);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
}

.section-sub {
    color: var(--muted);
    font-size: 16px;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 68px;
    background: rgba(10, 15, 13, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
}

.nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    flex-shrink: 0;
}

.nav-logo span {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 34px;
}

.nav-menu ul li a {
    position: relative;
    color: var(--muted);
    font-size: 15px;
    padding: 6px 0;
    transition: color 0.25s ease;
}

.nav-menu ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--grad);
    border-radius: 2px;
    transition: width 0.25s ease;
}

.nav-menu ul li a:hover,
.nav-menu ul li a.active {
    color: #fff;
}

.nav-menu ul li a:hover::after,
.nav-menu ul li a.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--grad);
    color: #052014;
    padding: 11px 22px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 6px 20px rgba(74, 222, 128, 0.25);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(74, 222, 128, 0.38);
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
}

.nav-toggle i,
.nav-toggle i::before,
.nav-toggle i::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: 0.3s ease;
}

.nav-toggle i {
    top: 20px;
}

.nav-toggle i::before {
    top: -6px;
}

.nav-toggle i::after {
    top: 6px;
}

.nav-toggle.open i {
    background: transparent;
}

.nav-toggle.open i::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
}

.nav-toggle.open i::after {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
}

.hero {
    position: relative;
    padding: 160px 0 90px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 55% at 18% 45%, rgba(74, 222, 128, 0.14) 0%, transparent 60%),
        radial-gradient(ellipse 55% 50% at 82% 25%, rgba(34, 211, 238, 0.12) 0%, transparent 55%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    border-radius: 20px;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.28);
    color: var(--green);
    font-size: 13px;
    margin-bottom: 24px;
}

.hero-badge::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.2);
}

.hero h1 {
    font-size: clamp(38px, 5.5vw, 58px);
    font-weight: 800;
    line-height: 1.16;
    letter-spacing: -0.5px;
    margin-bottom: 22px;
}

.hero-desc {
    color: var(--muted);
    font-size: 17px;
    max-width: 500px;
    margin-bottom: 38px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 44px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat strong {
    font-size: 28px;
    font-weight: 800;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    line-height: 1.2;
}

.stat span {
    font-size: 13px;
    color: var(--muted);
    margin-top: 4px;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone {
    width: 300px;
    height: 600px;
    border-radius: 40px;
    border: 8px solid #22302a;
    background: linear-gradient(160deg, #17261f, #0c1210);
    box-shadow: 0 40px 90px rgba(0, 0, 0, 0.55), 0 0 80px rgba(74, 222, 128, 0.08);
    overflow: hidden;
    position: relative;
}

.phone img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
}

.phone-screen {
    width: 100%;
    height: 100%;
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.phone-top {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 4px;
}

.phone-avatar {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    background: var(--grad);
    flex-shrink: 0;
}

.phone-top b {
    font-size: 14px;
}

.phone-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.07);
    color: var(--muted);
    font-size: 12px;
}

.phone-banner {
    height: 110px;
    border-radius: 14px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    position: relative;
    overflow: hidden;
}

.phone-banner::after {
    content: "热门推荐";
    position: absolute;
    left: 14px;
    bottom: 12px;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
}

.phone-tabs {
    display: flex;
    gap: 16px;
    font-size: 12px;
}

.phone-tabs span {
    color: var(--muted);
    padding-bottom: 4px;
}

.phone-tabs span.on {
    color: var(--green);
    border-bottom: 2px solid var(--green);
}

.phone-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.ph-card {
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.ph-card::after {
    content: attr(data-t);
    position: absolute;
    left: 6px;
    bottom: 6px;
    font-size: 9px;
    color: #fff;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

.ph-card.c1 { background: linear-gradient(135deg, #2d5a27, #1a3d16); }
.ph-card.c2 { background: linear-gradient(135deg, #4a2d5a, #2d163d); }
.ph-card.c3 { background: linear-gradient(135deg, #5a2d2d, #3d1616); }
.ph-card.c4 { background: linear-gradient(135deg, #2d3d5a, #16223d); }
.ph-card.c5 { background: linear-gradient(135deg, #5a4a2d, #3d3216); }
.ph-card.c6 { background: linear-gradient(135deg, #2d5a4a, #163d32); }

.phone-nav {
    display: flex;
    justify-content: space-around;
    padding: 8px 0 2px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.phone-nav span {
    font-size: 10px;
    color: var(--muted);
    text-align: center;
}

.phone-nav span.on {
    color: var(--green);
}

.float-chip {
    position: absolute;
    padding: 12px 18px;
    border-radius: 14px;
    background: rgba(20, 30, 25, 0.92);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: floaty 4s ease-in-out infinite;
}

.float-chip .fc-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.float-chip b {
    display: block;
    font-size: 13px;
}

.float-chip small {
    color: var(--muted);
    font-size: 11px;
}

.float-chip.f1 { top: 12%; right: -4px; }
.float-chip.f2 { bottom: 16%; left: -24px; animation-delay: 2s; }

@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 36px 30px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--border);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(74, 222, 128, 0.32);
    background: var(--card-hover);
}

.feature-icon {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 24px;
}

.feature-icon.g { background: linear-gradient(135deg, rgba(74, 222, 128, 0.2), rgba(74, 222, 128, 0.04)); }
.feature-icon.b { background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(34, 211, 238, 0.04)); }
.feature-icon.p { background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(168, 85, 247, 0.04)); }

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.showcase-phones {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.show-phone {
    width: 210px;
    text-align: center;
}

.show-phone .sp-body {
    width: 100%;
    height: 380px;
    border-radius: 26px;
    border: 6px solid #22302a;
    background: #0c1210;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.show-phone .sp-body img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
}

.show-phone:hover .sp-body {
    transform: translateY(-8px);
}

.show-phone.mid .sp-body {
    transform: translateY(-18px);
    border-color: #3d4f5c;
    box-shadow: 0 30px 70px rgba(74, 222, 128, 0.18);
}

.show-phone.mid:hover .sp-body {
    transform: translateY(-26px);
}

.sp-label {
    margin-top: 18px;
    color: var(--muted);
    font-size: 14px;
}

.show-phone.mid .sp-label {
    margin-top: 0;
}

.download {
    position: relative;
}

.download-card {
    position: relative;
    border-radius: 32px;
    padding: 72px 60px;
    text-align: center;
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.1), rgba(34, 211, 238, 0.05));
    border: 1px solid rgba(74, 222, 128, 0.22);
    overflow: hidden;
}

.download-card::before {
    content: "";
    position: absolute;
    top: -60%;
    left: -40%;
    width: 90%;
    height: 220%;
    background: radial-gradient(circle, rgba(74, 222, 128, 0.1) 0%, transparent 60%);
    animation: pulse 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.15); opacity: 1; }
}

.download-card h2 {
    position: relative;
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 800;
    margin-bottom: 16px;
}

.download-card > p {
    position: relative;
    color: var(--muted);
    font-size: 16px;
    margin-bottom: 42px;
}

.download-btns {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 22px;
    flex-wrap: wrap;
}

.dl-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 34px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: #fff;
    cursor: pointer;
    text-align: left;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.dl-btn:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
}

.dl-btn:active {
    transform: scale(0.97);
}

.dl-icon {
    width: 50px;
    height: 50px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dl-icon.android {
    background: linear-gradient(135deg, #a4f0c0, #4ade80);
}

.dl-icon.ios {
    background: linear-gradient(135deg, #dbeafe, #93c5fd);
}

.dl-icon i {
    display: block;
    width: 30px;
    height: 30px;
}

.dl-icon i::before {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.dl-icon.android i::before {
    background-image: url("../icons/安卓.svg");
}

.dl-icon.ios i::before {
    background-image: url("../icons/苹果.svg");
}

.dl-btn em {
    display: block;
    font-style: normal;
    font-size: 12px;
    color: var(--muted);
}

.dl-btn strong {
    font-size: 18px;
    font-weight: 700;
}

.download-meta {
    position: relative;
    margin-top: 30px;
    font-size: 13px;
    color: #5d6d63;
}

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

.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    border-radius: 16px;
    background: var(--card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-item.open {
    border-color: rgba(74, 222, 128, 0.3);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-q i {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.faq-q i::before,
.faq-q i::after {
    content: "";
    position: absolute;
    background: var(--green);
    border-radius: 2px;
    transition: 0.3s ease;
}

.faq-q i::before {
    top: 50%;
    left: 0;
    width: 18px;
    height: 2px;
    transform: translateY(-50%);
}

.faq-q i::after {
    left: 50%;
    top: 0;
    width: 2px;
    height: 18px;
    transform: translateX(-50%);
}

.faq-item.open .faq-q i::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-a p {
    padding: 0 24px 22px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.footer {
    padding: 60px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 17px;
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--muted);
    font-size: 14px;
    transition: color 0.25s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-copy {
    color: #4b5a50;
    font-size: 13px;
}

.back-top {
    position: fixed;
    right: 28px;
    bottom: 28px;
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: var(--grad);
    color: #052014;
    cursor: pointer;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(74, 222, 128, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: 0.3s ease;
    z-index: 90;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-top i {
    width: 18px;
    height: 18px;
    position: relative;
}

.back-top i::before {
    content: "";
    position: absolute;
    top: 3px;
    left: 4px;
    width: 10px;
    height: 10px;
    border-top: 2.5px solid #052014;
    border-left: 2.5px solid #052014;
    transform: rotate(45deg);
}

@media (max-width: 992px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: rgba(10, 15, 13, 0.98);
        border-bottom: 1px solid var(--border);
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .nav-menu.open {
        max-height: 360px;
    }

    .nav-menu ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 0;
    }

    .nav-menu ul li a {
        display: block;
        padding: 14px 4px;
        font-size: 16px;
    }

    .nav-menu ul li a::after {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero {
        padding: 130px 0 70px;
    }

    .hero-visual {
        order: -1;
    }

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

@media (max-width: 640px) {
    .section {
        padding: 70px 0;
    }

    .hero {
        padding: 110px 0 60px;
    }

    .hero-btns {
        flex-direction: column;
    }

    .hero-btns .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 28px;
    }

    .phone {
        width: 250px;
        height: 500px;
    }

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

    .showcase-phones {
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: 20px;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
        padding-bottom: 18px;
        margin: 0 -24px;
        padding-left: 24px;
        padding-right: 24px;
    }

    .showcase-phones::-webkit-scrollbar {
        height: 6px;
    }

    .showcase-phones::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.06);
        border-radius: 3px;
    }

    .showcase-phones::-webkit-scrollbar-thumb {
        background: rgba(74, 222, 128, 0.55);
        border-radius: 3px;
    }

    .show-phone,
    .show-phone.mid {
        width: 200px;
        flex-shrink: 0;
        scroll-snap-align: center;
    }

    .show-phone .sp-body,
    .show-phone.mid .sp-body {
        height: 360px;
        transform: none;
    }

    .download-card {
        padding: 48px 24px;
    }

    .download-btns {
        flex-direction: column;
    }

    .dl-btn {
        justify-content: flex-start;
        width: 100%;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}