:root {
    /* Stripe-inspired Premium Palette */
    --p-white: #FFFFFF;
    --p-ghost: #F6F9FC;
    --p-indigo: #635BFF;
    --p-purple: #7C3AED;
    --p-cyan: #00D4FF;
    --p-dark: #0A2540;
    --p-text: #425466;
    --p-border: #E6EBF1;
    
    /* Gradients */
    --g-primary: linear-gradient(135deg, #635BFF 0%, #7C3AED 100%);
    --g-soft: linear-gradient(135deg, #F6F9FC 0%, #FFFFFF 100%);
    /* Typography System (Unified & Large) */
    --fs-h1: clamp(44px, 8vw, 72px);
    --fs-h2: clamp(32px, 5vw, 44px);
    --fs-h3: 26px;
    --fs-h4: 22px;
    --fs-body: 18px;
    --fs-small: 16px;
    
    /* Animation */
    --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--p-white);
    color: var(--p-text);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: var(--fs-body);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 90px;
}

h1 { font-size: var(--fs-h1); font-weight: 800; line-height: 1.1; color: var(--p-dark); }
h2 { font-size: var(--fs-h2); font-weight: 800; line-height: 1.2; color: var(--p-dark); }
h3 { font-size: var(--fs-h3); font-weight: 700; color: var(--p-dark); }
h4 { font-size: var(--fs-h4); font-weight: 700; color: var(--p-dark); }
p { font-size: var(--fs-body); color: var(--p-text); line-height: 1.7; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Premium Navigation --- */

header {
    height: 90px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: linear-gradient(180deg, rgba(247, 248, 255, 0.96) 0%, rgba(255, 255, 255, 0.92) 100%);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(99, 91, 255, 0.12);
    box-shadow: 0 10px 28px rgba(99, 91, 255, 0.08);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 24px;
}

.brand {
    font-size: 24px;
    font-weight: 800;
    color: var(--p-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-toggle {
    display: none;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(99, 91, 255, 0.14);
    background: rgba(255, 255, 255, 0.92);
    border-radius: 14px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    box-shadow: 0 6px 18px rgba(10, 37, 64, 0.08);
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--p-indigo);
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-links a {
    color: var(--p-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    opacity: 0.82;
    transition: opacity 0.2s, color 0.2s;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--p-indigo);
}

.btn-white {
    background: var(--g-primary);
    color: var(--p-white);
    border: 1px solid rgba(99, 91, 255, 0.08);
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(99, 91, 255, 0.22);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(99, 91, 255, 0.26);
}

header .btn-white {
    background: rgba(255, 255, 255, 0.92);
    color: var(--p-indigo);
    border: 1px solid rgba(99, 91, 255, 0.14);
    box-shadow: 0 6px 18px rgba(10, 37, 64, 0.08);
}

/* --- Light Premium Hero --- */

.hero-wrap {
    padding: 160px 0 120px;
    background: #ffffff;
    background: radial-gradient(circle at top right, rgba(124, 58, 237, 0.05), transparent 40%),
                radial-gradient(circle at bottom left, rgba(99, 91, 255, 0.05), transparent 40%);
    position: relative;
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-shapes .shape {
    position: absolute;
    filter: blur(100px);
    opacity: 0.12;
    border-radius: 50%;
}

.shape-1 {
    width: 600px; height: 600px;
    background: linear-gradient(135deg, #6366f1, #a855f7);
    top: -200px; left: -100px;
    animation: pulse 8s infinite alternate;
}

.shape-2 {
    width: 500px; height: 500px;
    background: linear-gradient(135deg, #7c3aed, #00d4ff);
    bottom: -100px; right: 5%;
    animation: pulse 12s infinite alternate-reverse;
}

.shape-3 {
    width: 300px; height: 300px;
    background: linear-gradient(135deg, #635bff, #ffffff);
    top: 20%; right: -50px;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.1; }
    100% { transform: scale(1.1); opacity: 0.15; }
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-text h1 {
    font-size: clamp(48px, 6.5vw, 84px);
    line-height: 1.05;
    font-weight: 900;
    color: var(--p-dark);
    margin-bottom: 24px;
    letter-spacing: -3px;
}

.text-gradient {
    background: var(--g-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-text p {
    font-size: 22px;
    color: var(--p-text);
    margin-bottom: 48px;
    max-width: 600px;
    line-height: 1.6;
}

.hero-btns {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--g-primary);
    color: white;
    padding: 20px 44px;
    border-radius: 20px;
    font-weight: 800;
    font-size: 20px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 15px 30px rgba(99, 91, 255, 0.25);
    width: fit-content;
}

.btn-primary:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px rgba(99, 91, 255, 0.35);
}

.download-stats {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--p-text);
    opacity: 0.7;
    font-size: 16px;
    font-weight: 600;
}

.stars { color: #fbbf24; font-size: 18px; }

/* Phone Mockup 3D - Light Mode */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 2000px;
}

.phone-mockup {
    width: 320px;
    height: 660px;
    background: #000;
    border: 12px solid #1a1a1e;
    border-radius: 54px;
    position: relative;
    transform: rotateY(-18deg) rotateX(8deg);
    box-shadow: 
        -30px 50px 80px rgba(10, 37, 64, 0.15),
        0 10px 20px rgba(0,0,0,0.1);
}

.phone-mockup::after {
    content: '';
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 30px;
    background: #000;
    border-radius: 20px;
    z-index: 20;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 42px;
    overflow: hidden;
    background: #fff;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-logo-img {
    max-width: 280px;
    height: auto;
    border-radius: 40px; /* Added rounded corners */
    filter: drop-shadow(0 20px 50px rgba(99, 91, 255, 0.25));
}

.floating-tag {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--p-border);
    padding: 14px 24px;
    border-radius: 18px;
    color: var(--p-dark);
    font-weight: 700;
    font-size: 15px;
    white-space: nowrap;
    box-shadow: 0 10px 30px rgba(0,0,0,0.06);
    z-index: 20;
}

.tag-1 { top: 15%; left: -60px; }
.tag-2 { top: 50%; right: -70px; }
.tag-3 { bottom: 15%; left: -40px; }

@media (max-width: 1100px) {
    .hero-container { grid-template-columns: 1fr; gap: 80px; text-align: center; }
    .hero-text h1 { margin: 0 auto 24px; }
    .hero-text p { margin: 0 auto 40px; }
    .hero-btns { align-items: center; }
    .phone-mockup { transform: rotateY(0) rotateX(8deg); }
}




/* --- Feature Cards --- */

.section { padding: 100px 0; }

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.p-card {
    background: var(--p-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: 0 15px 35px rgba(50, 50, 93, 0.1), 0 5px 15px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s var(--ease-out);
    position: relative;
    top: 0;
}

.p-card:hover {
    transform: translateY(-10px);
}

.p-card .icon {
    width: 48px;
    height: 48px;
    background: var(--p-ghost);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--p-indigo);
}

.p-card h3 {
    color: var(--p-dark);
    font-size: 20px;
    margin-bottom: 16px;
}

/* --- Gallery Section --- */
.gallery-scroll {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding: 20px 0;
    scrollbar-width: none;
}
.gallery-scroll::-webkit-scrollbar { display: none; }
.gallery-item {
    flex: 0 0 300px;
    height: 500px;
    background: #E6EBF1;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

/* --- FAQ Accordion --- */
.accordion-item {
    border-bottom: 1px solid var(--p-border);
    padding: 24px 0;
}
.accordion-header {
    font-weight: 700;
    color: var(--p-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
}

/* --- Timeline --- */
.roadmap {
    display: flex;
    gap: 40px;
    overflow-x: auto;
    padding: 40px 0;
}
.roadmap-step {
    flex: 0 0 250px;
    border-top: 4px solid var(--p-indigo);
    padding-top: 24px;
}

/* --- Improved Grid --- */
.grid-6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
@media (max-width: 768px) {
    .grid-6 { grid-template-columns: 1fr; }
}

/* --- Info Bar --- */

.info-bar {
    background: var(--p-ghost);
    padding: 60px 0;
    border-top: 1px solid var(--p-border);
    border-bottom: 1px solid var(--p-border);
}

.info-inner {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.info-item h4 {
    font-size: 40px;
    color: var(--p-indigo);
    font-weight: 800;
}

/* --- Footer --- */

footer {
    padding: 100px 0 40px;
    background: var(--p-ghost);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 64px;
    margin-bottom: 60px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--p-border);
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--p-text);
}

@media (max-width: 768px) {
    body {
        padding-top: 82px;
    }
    header {
        height: 82px;
    }
    .container {
        padding: 0 18px;
    }
    .nav-inner {
        position: relative;
        gap: 12px;
    }
    .brand {
        font-size: 18px;
        flex: 1;
        min-width: 0;
        gap: 8px;
    }
    .brand span {
        display: inline-block;
        max-width: 88px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .nav-toggle {
        display: inline-flex;
        order: 3;
        width: 44px;
        height: 44px;
        flex: 0 0 44px;
    }
    header .btn-white {
        display: inline-flex;
        order: 2;
        padding: 10px 12px;
        font-size: 13px;
        white-space: nowrap;
        flex: 0 0 auto;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        right: 0;
        left: 0;
        flex-direction: column;
        gap: 0;
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid rgba(99, 91, 255, 0.12);
        border-radius: 20px;
        box-shadow: 0 20px 40px rgba(10, 37, 64, 0.1);
        overflow: hidden;
    }
    .nav-links a {
        padding: 16px 18px;
        font-size: 16px;
        border-bottom: 1px solid rgba(230, 235, 241, 0.9);
    }
    .nav-links a:last-child {
        border-bottom: 0;
    }
    .nav-inner.nav-open .nav-links {
        display: flex;
    }
    .nav-inner.nav-open .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .nav-inner.nav-open .nav-toggle span:nth-child(2) {
        opacity: 0;
    }
    .nav-inner.nav-open .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    .hero-wrap {
        padding: 124px 0 88px;
    }
    .hero-container,
    .download-hub,
    .footer-main,
    .testimonial-columns,
    .info-inner {
        grid-template-columns: 1fr;
        flex-direction: column;
    }
    .hero-container {
        gap: 42px;
        text-align: center;
    }
    .hero-text h1 {
        margin: 0 auto 20px;
        letter-spacing: -2px;
    }
    .hero-text p {
        margin: 0 auto 30px;
        font-size: 18px;
    }
    .hero-btns {
        align-items: center;
    }
    .hero-visual,
    .download-full .container,
    .footer-bottom,
    .trust-row,
    .download-trio {
        text-align: center;
        justify-content: center;
    }
    .phone-mockup {
        width: 280px;
        height: 580px;
        transform: none;
    }
    .hero-logo-img {
        max-width: 220px;
    }
    .bento-grid,
    .faq-tiled-grid,
    .card-grid,
    .grid-6,
    .category-grid {
        grid-template-columns: 1fr;
    }
    .bento-1,
    .bento-2,
    .bento-3,
    .bento-4,
    .bento-5,
    .bento-6 {
        grid-column: span 1;
        grid-row: span 1;
    }
    .feature-pair {
        grid-template-columns: 1fr;
        gap: 28px;
        margin-bottom: 64px;
    }
    .feature-pair:nth-child(even) {
        direction: ltr;
    }

    .comparison-table {
        display: table;
        min-width: 720px;
        white-space: nowrap;
    }
    .download-hub {
        padding: 36px 22px;
        border-radius: 28px;
        gap: 32px;
    }
    .hub-content h2 {
        font-size: 38px;
    }
    .hub-content p {
        font-size: 18px;
    }
    .app-mockup-frame {
        width: 280px;
        height: 520px;
    }
    .download-full {
        padding: 88px 0;
    }
    .download-full .container {
        grid-template-columns: 1fr;
        row-gap: 14px;
        text-align: center;
    }
    .download-logo-frame,
    .download-full .container::before,
    .download-full h2,
    .download-full p,
    .download-full > .container > a.btn-primary,
    .trust-row {
        grid-column: auto;
        justify-self: center;
    }
    .download-logo-frame {
        grid-row: auto;
    }
    .footer-main {
        gap: 36px;
    }
    .footer-bottom {
        gap: 18px;
        align-items: flex-start;
    }
    .testimonial-columns,
    .testimonial-col,
    .download-trio,
    .info-inner {
        display: flex;
        flex-direction: column;
    }
    .testimonial-columns,
    .testimonial-col {
        gap: 20px;
    }
    .testimonial-col[style] {
        padding-top: 0 !important;
    }
    .comparison-table {
        min-width: 0 !important;
        width: 100% !important;
        table-layout: fixed;
        white-space: normal;
        font-size: 12px;
    }
    .comparison-table-wrapper {
        width: 100%;
        overflow: hidden;
        border-radius: 24px;
    }
    .comparison-table th,
    .comparison-table td {
        padding: 14px 10px;
        font-size: 12px;
        line-height: 1.45;
        word-break: break-word;
    }
    .comparison-table th {
        font-size: 13px;
    }
}

/* --- Animations --- */

.fade-in {
    animation: fadeIn 1s var(--ease-out) forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */

/* --- Balanced Bento Grid --- */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.bento-card {
    background: white;
    padding: 32px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid var(--p-border);
    transition: all 0.3s var(--ease-out);
}

.bento-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 91, 255, 0.1);
    border-color: var(--p-indigo);
}

.bento-card h3 {
    font-size: var(--fs-h3);
    color: var(--p-dark);
    margin: 16px 0 12px;
}

.bento-card p {
    font-size: var(--fs-small);
    color: var(--p-text);
    line-height: 1.6;
}
.bento-1 { grid-column: span 1; grid-row: span 2; background: var(--g-primary); color: white; display: flex; flex-direction: column; justify-content: space-between; }
.bento-1 h3, .bento-1 p { color: white; }
.bento-1 .icon { background: rgba(255,255,255,0.2); color: white; }

.bento-2 { grid-column: span 2; grid-row: span 1; background: #F6F9FC; }
.bento-3 { grid-column: span 1; grid-row: span 1; }
.bento-4 { grid-column: span 1; grid-row: span 1; }
.bento-5 { grid-column: span 1; grid-row: span 1; }
.bento-6 { grid-column: span 1; grid-row: span 1; }

@media (max-width: 992px) {
    .bento-grid { grid-template-columns: repeat(2, 1fr); }
    .bento-1 { grid-column: span 2; grid-row: span 1; }
    .bento-2, .bento-3, .bento-4, .bento-5, .bento-6 { grid-column: span 1; }
}

/* --- Advanced Testimonials --- */
.testimonial-columns {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.testimonial-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.testimonial-bubble {
    background: white;
    padding: 40px;
    border-radius: 32px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.03);
    border: 1px solid var(--p-border);
    position: relative;
    transition: transform 0.3s var(--ease-out);
}

.testimonial-bubble:hover {
    transform: scale(1.02);
    border-color: var(--p-indigo);
}

.testimonial-bubble::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 80px;
    color: var(--p-indigo);
    opacity: 0.1;
    font-family: serif;
}

.user-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 24px;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--g-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 14px;
}

/* --- Tiled FAQ --- */
.faq-tiled-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.faq-tile {
    background: white;
    padding: 32px;
    border-radius: 24px;
    border: 1px solid var(--p-border);
    transition: all 0.3s var(--ease-out);
}

.faq-tile:hover {
    border-color: var(--p-indigo);
    background: var(--g-soft);
}

.faq-tile h4 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--p-dark);
}

.faq-tile h4::before {
    content: 'Q';
    background: var(--p-indigo);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* --- Advanced Download Hub --- */
.download-hub {
    background: var(--g-primary);
    border-radius: 48px;
    padding: 80px;
    position: relative;
    overflow: hidden;
    color: white;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-hub::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--p-indigo) 0%, transparent 70%);
    opacity: 0.3;
    z-index: 0;
}

.hub-content {
    position: relative;
    z-index: 10;
}

.hub-content h2 {
    color: white;
    font-size: 56px;
    margin-bottom: 24px;
}

.hub-content p {
    color: white;
    opacity: 0.8;
    font-size: 20px;
    margin-bottom: 40px;
}

.download-trio {
    display: flex;
    align-items: center;
    gap: 30px;
}

.qr-plate {
    background: white;
    padding: 12px;
    border-radius: 20px;
    width: 140px;
    height: 140px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--p-dark);
    font-weight: 800;
    font-size: 12px;
}
/* --- Full-width Download Section --- */
.download-full {
    position: relative;
    padding: 140px 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(99, 91, 255, 0.06) 0%, rgba(99, 91, 255, 0) 28%),
        radial-gradient(circle at 88% 22%, rgba(0, 212, 255, 0.08) 0%, rgba(0, 212, 255, 0) 24%),
        linear-gradient(180deg, #ffffff 0%, #f8f9ff 100%);
    overflow: hidden;
    text-align: center;
    border-top: 1px solid var(--p-border);
}

.download-full::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 91, 255, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.download-full .container {
    position: relative;
    max-width: 1040px;
    padding: 52px 46px 46px;
    border-radius: 36px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(99, 91, 255, 0.1);
    box-shadow: 0 24px 60px rgba(10, 37, 64, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);
    column-gap: 40px;
    row-gap: 16px;
    align-items: center;
    text-align: left;
}

.download-full .container::before {
    content: '官方直装 APK';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    margin-bottom: 24px;
    border-radius: 999px;
    background: rgba(99, 91, 255, 0.08);
    border: 1px solid rgba(99, 91, 255, 0.12);
    color: var(--p-indigo);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.04em;
    grid-column: 2;
    justify-self: start;
}

.download-full .container::after {
    content: none;
}

.download-logo-frame {
    width: 160px;
    height: 160px;
    padding: 12px;
    border-radius: 36px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.08) 100%),
        var(--g-primary);
    box-shadow: 0 20px 40px rgba(99, 91, 255, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.24);
    grid-column: 1;
    grid-row: 1 / span 4;
    align-self: center;
    justify-self: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-logo-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 24px;
}

.page-ecosystem .hero-text > .category-tile {
    display: none;
}

.v-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f1f0ff;
    color: var(--p-indigo);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 24px;
    border: 1px solid rgba(99, 91, 255, 0.1);
}

.download-full h2 {
    font-size: 52px;
    color: var(--p-dark);
    margin-bottom: 20px;
    letter-spacing: -1.5px;
    font-weight: 800;
    max-width: 760px;
    margin-left: 0;
    margin-right: 0;
    grid-column: 2;
}

.download-full p {
    max-width: 700px;
    margin: 0 0 20px;
    font-size: 19px;
    line-height: 1.7;
    color: #66758d;
    grid-column: 2;
}

.download-full > .container > a.btn-primary {
    grid-column: 2;
    justify-self: start;
}

.trust-row {
    display: flex;
    justify-content: flex-start;
    gap: 18px;
    margin-top: 18px;
    flex-wrap: wrap;
    grid-column: 2;
}

.trust-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    color: var(--p-dark);
    font-size: 15px;
    padding: 14px 18px;
    background: white;
    border-radius: 18px;
    border: 1px solid rgba(99, 91, 255, 0.08);
    box-shadow: 0 12px 26px rgba(10, 37, 64, 0.04);
}

.trust-icon-circle {
    width: 48px;
    height: 48px;
    background: #f8fafc;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #22c55e;
    border: 1px solid var(--p-border);
    transition: all 0.3s ease;
}

.trust-item:hover .trust-icon-circle {
    background: white;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    transform: translateY(-5px);
}

.download-full .btn-primary {
    min-width: 320px;
    border-radius: 22px;
    padding: 22px 40px;
    box-shadow: 0 20px 38px rgba(99, 91, 255, 0.24);
}

.download-full .btn-primary::before {
    content: 'Android';
    display: inline-block;
    padding: 5px 10px;
    margin-right: 2px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.trust-item:first-child::after,
.trust-item:nth-child(2)::after,
.trust-item:nth-child(3)::after {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #7b8798;
}

.trust-item:first-child::after {
    content: '官方版本';
}

.trust-item:nth-child(2)::after {
    content: '安装更安心';
}

.trust-item:nth-child(3)::after {
    content: '持续维护';
}

@media (max-width: 768px) {
    .download-full .container {
        padding: 32px 22px 30px;
        border-radius: 28px;
        grid-template-columns: 1fr;
        row-gap: 14px;
        text-align: center;
    }
    .download-full .container::after {
        content: none;
    }
    .download-logo-frame {
        width: 104px;
        height: 104px;
        padding: 8px;
        margin: 0 auto 20px;
        grid-column: auto;
        grid-row: auto;
    }
    .download-logo-image {
        border-radius: 18px;
    }
    .download-full .container::before,
    .download-logo-frame,
    .download-full h2,
    .download-full p,
    .download-full > .container > a.btn-primary,
    .trust-row {
        grid-column: auto;
        justify-self: center;
    }
    .download-full h2 {
        font-size: 38px;
        margin-left: auto;
        margin-right: auto;
    }
    .download-full p {
        font-size: 17px;
        margin-bottom: 22px;
        margin-left: auto;
        margin-right: auto;
    }
    .download-full .btn-primary {
        min-width: auto;
        width: 100%;
    }
    .trust-row {
        gap: 12px;
        justify-content: center;
    }
    .trust-item {
        width: 100%;
        justify-content: flex-start;
    }
}

/* --- Version Library Grid (For Homepage) --- */
.version-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.v-card {
    background: white;
    border-radius: 24px;
    padding: 40px;
    border: 1px solid var(--p-border);
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.v-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(10, 37, 64, 0.1);
}

.v-featured {
    border: 2px solid var(--p-indigo);
    box-shadow: 0 20px 40px rgba(99, 91, 255, 0.08);
}

.v-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--g-primary);
    color: white;
    padding: 6px 14px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 700;
}

.v-header h3 {
    font-size: 24px;
    color: var(--p-dark);
    margin-bottom: 8px;
}

.v-num {
    font-size: 16px;
    color: var(--p-indigo);
    font-weight: 700;
    display: block;
    margin-bottom: 24px;
}

.v-features {
    list-style: none;
    margin: 0 0 40px 0;
    padding: 0;
    flex-grow: 1;
}

.v-features li {
    font-size: 15px;
    color: var(--p-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.v-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--p-indigo);
    border-radius: 50%;
}

.v-footer {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.v-qr {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 20px;
    border-top: 1px solid var(--p-border);
}

.qr-box {
    width: 60px;
    height: 60px;
    background: #f1f5f9;
    border: 1px dashed #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #94a3b8;
    border-radius: 8px;
}

.v-qr span {
    font-size: 14px;
    color: var(--p-text);
    font-weight: 600;
}

.v-btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--p-border);
    color: var(--p-text);
    text-decoration: none;
    font-weight: 700;
    transition: all 0.2s ease;
}

.v-icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

@media (max-width: 1000px) {
    .version-grid { grid-template-columns: 1fr; }
}

.app-mockup-frame {
    position: relative;
    z-index: 10;
    width: 320px;
    height: 600px;
    background: #1a1a1a;
    border: 12px solid #333;
    border-radius: 40px;
    box-shadow: 0 50px 100px rgba(0,0,0,0.5);
    margin: 0 auto;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.mockup-inner {
    flex: 1;
    background: var(--g-soft);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mock-card {
    height: 120px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.trust-badges {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    font-size: 14px;
    opacity: 0.7;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- Subpage Layout Diversification --- */
.feature-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 100px;
}

.feature-pair:nth-child(even) {
    direction: rtl;
}

.feature-pair:nth-child(even) * {
    direction: ltr;
}

.visual-box {
    background: var(--p-ghost);
    border-radius: 32px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--p-border);
    color: #ccc;
    font-weight: 800;
    overflow: hidden;
    padding: 0;
}

.visual-box-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
    margin: 40px 0;
}

.stats-grid .stat-num {
    font-size: 48px;
    font-weight: 800;
    color: var(--p-indigo);
    margin-bottom: 12px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.category-tile {
    padding: 30px;
    border-radius: 20px;
    background: white;
    border: 1px solid var(--p-border);
    text-align: center;
    transition: all 0.3s var(--ease-out);
}

.category-tile:hover {
    background: var(--g-primary);
    color: white;
    transform: translateY(-5px);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.comparison-table th, .comparison-table td {
    padding: 24px;
    text-align: center;
    border-bottom: 1px solid var(--p-border);
}

.comparison-table th {
    background: var(--p-ghost);
    color: var(--p-dark);
    font-weight: 800;
}

.comparison-table .check { color: #22c55e; font-weight: 900; }
.comparison-table .cross { color: #ef4444; font-weight: 900; }

@media (max-width: 768px) {
    .feature-pair { grid-template-columns: 1fr; gap: 40px; }
    .hero-content {
        grid-template-columns: 1fr;
        row-gap: 16px;
        column-gap: 0;
        text-align: center;
        padding: 28px 22px;
        border-radius: 28px;
    }
    .hero-content > :not(.hero-logo) {
        grid-column: auto;
    }
    .hero-logo {
        grid-column: auto;
        grid-row: auto;
        margin: 0 auto;
        width: min(190px, 52vw);
    }
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .bento-grid {
        grid-template-columns: 1fr !important;
    }
    .bento-1,
    .bento-2,
    .bento-3,
    .bento-4,
    .bento-5,
    .bento-6,
    .bento-grid > .bento-card {
        grid-column: span 1 !important;
        grid-row: span 1 !important;
    }
    .testimonial-columns {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    .testimonial-col {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding-top: 0 !important;
    }
    .faq-tiled-grid {
        grid-template-columns: 1fr !important;
    }
    .category-grid {
        grid-template-columns: 1fr !important;
    }
    .home-types-layout {
        grid-template-columns: 1fr !important;
        gap: 28px !important;
    }
    .info-item h4 {
        font-size: 28px !important;
    }
    .stats-grid {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 10px !important;
        margin: 20px 0 !important;
        text-align: center !important;
    }
    .stats-grid .stat-num {
        font-size: 24px !important;
        font-weight: 800 !important;
        color: var(--p-indigo) !important;
        margin-bottom: 8px !important;
    }
    .stats-grid p {
        font-size: 11px !important;
        color: var(--p-text) !important;
    }
    .visual-box {
        height: auto !important;
        aspect-ratio: 4 / 3 !important;
        max-width: 280px !important;
        width: 100% !important;
        margin: 0 auto !important;
        border-radius: 20px !important;
        box-shadow: 0 10px 25px rgba(0,0,0,0.08) !important;
        border: 1px solid var(--p-border) !important;
        background: var(--p-ghost) !important;
        overflow: hidden !important;
    }
    .visual-box-image {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
        object-position: center !important;
    }
}