:root {
    /* App 风格：柔紫蓝 → 淡黄，配毛玻璃与 3D 柔光 */
    --brand-50:  #f5f3ff;
    --brand-100: #ece9ff;
    --brand-200: #dcd6ff;
    --brand-300: #bfb4ff;
    --brand-400: #9b8cff;
    --brand-500: #7c6bf5;
    --brand-600: #5f4fe0;
    --brand-700: #4a3bc0;

    --warm-100: #fff6dc;
    --warm-200: #ffe7a8;
    --warm-300: #ffd27a;

    --accent-pink: #f8b8d4;
    --accent-lilac: #cbb9ff;

    --primary-color: var(--brand-500);
    --primary-dark: var(--brand-700);

    --text-primary: #1f1b3a;
    --text-secondary: #5b5880;
    --text-muted: #8a88a8;

    --background: #f7f6ff;
    --surface: #ffffff;

    /* 首屏主渐变：模仿截图顶部的淡紫蓝 → 底部奶黄 */
    --gradient-hero: linear-gradient(180deg,
        #e9e6ff 0%,
        #eee9ff 32%,
        #f5ecff 58%,
        #fdebc7 100%);

    --gradient-soft: linear-gradient(180deg, #f6f4ff 0%, #ffffff 100%);
    --gradient-card-a: linear-gradient(135deg, #dcd4ff 0%, #b9acff 100%);
    --gradient-card-b: linear-gradient(135deg, #fde3ae 0%, #ffc977 100%);
    --gradient-card-c: linear-gradient(135deg, #d8c9ff 0%, #9e8cff 100%);

    --card-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 10px 25px -12px rgba(92, 70, 210, 0.25),
        0 4px 10px -4px rgba(92, 70, 210, 0.12);
    --card-shadow-hover:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 24px 48px -18px rgba(92, 70, 210, 0.35),
        0 8px 18px -6px rgba(92, 70, 210, 0.2);

    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    --harmony-red: #cf0a2c;
    --harmony-red-dark: #a00824;

    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", "Noto Sans SC", system-ui, -apple-system, "PingFang SC", sans-serif;
    line-height: 1.65;
    color: var(--text-primary);
    background: var(--background);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 10000;
    padding: 12px 20px;
    background: var(--primary-color);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 12px 12px;
}

.skip-link:focus {
    left: 16px;
    top: 8px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    min-height: var(--header-height);
    background: rgba(247, 244, 255, 0.72);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    z-index: 1000;
    padding: 14px 0;
    border-bottom: 1px solid rgba(124, 107, 245, 0.08);
    transition: box-shadow 0.25s ease, background 0.25s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-decoration: none;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(124, 107, 245, 0.35);
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
    margin-top: 2px;
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
    position: relative;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    border-radius: 999px;
    transition: width 0.25s ease, left 0.25s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a:hover::after {
    width: 100%;
    left: 0;
}

.lang-switch {
    background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
    color: #fff;
    border: none;
    padding: 9px 18px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.8125rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 6px 14px rgba(95, 79, 224, 0.3);
}

.lang-switch:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(95, 79, 224, 0.4);
}

/* ===== Hero（App 风背景 + 截图） ===== */
.hero {
    position: relative;
    padding: calc(var(--header-height) + 64px) 0 88px;
    background: var(--gradient-hero);
    overflow: hidden;
    color: var(--text-primary);
}

/* 装饰性柔光球 */
.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.55;
    pointer-events: none;
    z-index: 0;
}

.hero::before {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle at 30% 30%, #c9bbff 0%, rgba(201, 187, 255, 0) 70%);
    top: -120px;
    left: -140px;
}

.hero::after {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle at 70% 70%, #ffd27a 0%, rgba(255, 210, 122, 0) 70%);
    bottom: -160px;
    right: -120px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: center;
}

.hero-copy {
    max-width: 560px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(124, 107, 245, 0.2);
    backdrop-filter: blur(8px);
    color: var(--brand-700);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 12px rgba(124, 107, 245, 0.12);
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand-500);
    box-shadow: 0 0 0 4px rgba(124, 107, 245, 0.2);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    text-wrap: balance;
    color: var(--text-primary);
}

.hero h1 .accent {
    background: linear-gradient(135deg, var(--brand-600) 0%, var(--brand-500) 50%, #d68a00 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero .lead {
    font-size: clamp(1rem, 2vw, 1.0625rem);
    margin-bottom: 32px;
    color: var(--text-secondary);
    max-width: 520px;
    text-wrap: pretty;
}

.cta-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    padding: 13px 22px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid transparent;
    line-height: 1;
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, #1f1b3a 0%, #3b3373 100%);
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(31, 27, 58, 0.6);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px -8px rgba(31, 27, 58, 0.65);
}

.btn-android {
    background: linear-gradient(135deg, #2faa5a 0%, #14863f 100%);
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(47, 170, 90, 0.45);
}

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

.btn-harmony {
    background: linear-gradient(135deg, #e23854 0%, var(--harmony-red) 100%);
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(207, 10, 44, 0.5);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.7);
    color: var(--brand-700);
    border-color: rgba(124, 107, 245, 0.25);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: #fff;
    transform: translateY(-2px);
}

/* 仿 App 的手机 + 页面堆叠 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 560px;
}

.phone-stack {
    position: relative;
    width: 280px;
}

.phone-float {
    position: absolute;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.9) inset,
        0 12px 28px -10px rgba(92, 70, 210, 0.3);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    z-index: 3;
    animation: floatY 5s ease-in-out infinite;
}

.phone-float .float-emoji {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: var(--gradient-card-a);
    color: #fff;
    font-size: 1rem;
}

.phone-float--a {
    top: 40px;
    left: -80px;
}

.phone-float--b {
    bottom: 90px;
    right: -70px;
    animation-delay: 1.2s;
}

.phone-float--b .float-emoji {
    background: var(--gradient-card-b);
}

.phone-float--c {
    top: 240px;
    left: -90px;
    animation-delay: 2.4s;
}

.phone-float--c .float-emoji {
    background: var(--gradient-card-c);
}

@keyframes floatY {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-10px); }
}

/* ===== Features ===== */
.features {
    position: relative;
    padding: 96px 0 80px;
    background: var(--gradient-soft);
}

.section-title {
    text-align: center;
    margin-bottom: 56px;
}

.section-eyebrow {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: var(--brand-100);
    color: var(--brand-700);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.section-title h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-title p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.feature-card {
    position: relative;
    background: var(--surface);
    padding: 28px 24px 26px;
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    text-align: left;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid rgba(124, 107, 245, 0.08);
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 64px;
    background: radial-gradient(120% 140% at 0% 0%, rgba(201, 187, 255, 0.55) 0%, rgba(201, 187, 255, 0) 70%);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--card-shadow-hover);
}

.feature-icon {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    font-size: 1.5rem;
    line-height: 1;
    color: #fff;
    background: var(--gradient-card-a);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.8) inset,
        0 10px 18px -8px rgba(95, 79, 224, 0.55);
}

.feature-card:nth-child(2) .feature-icon { background: var(--gradient-card-b); color: #7a4a00; box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 10px 18px -8px rgba(220, 150, 40, 0.5); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, #b5ebff 0%, #65b0ff 100%); box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 10px 18px -8px rgba(60, 130, 220, 0.5); }
.feature-card:nth-child(4) .feature-icon { background: linear-gradient(135deg, #ffd2e6 0%, #ff8ab3 100%); box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 10px 18px -8px rgba(220, 110, 160, 0.5); }
.feature-card:nth-child(5) .feature-icon { background: linear-gradient(135deg, #d2e9c4 0%, #7ec977 100%); box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 10px 18px -8px rgba(110, 180, 100, 0.5); }
.feature-card:nth-child(6) .feature-icon { background: var(--gradient-card-c); box-shadow: 0 1px 0 rgba(255,255,255,0.8) inset, 0 10px 18px -8px rgba(140, 100, 255, 0.5); }

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.65;
}

.lang-content { display: none; }
.lang-content.active { display: inline; }
h1 .lang-content.active { display: block; }

/* ===== Preview ===== */
.app-preview {
    padding: 96px 0;
    background:
        radial-gradient(60% 60% at 10% 0%, rgba(201, 187, 255, 0.35) 0%, rgba(201, 187, 255, 0) 70%),
        radial-gradient(60% 60% at 100% 100%, rgba(255, 210, 122, 0.28) 0%, rgba(255, 210, 122, 0) 70%),
        var(--surface);
}

.preview-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
    margin-top: 40px;
}

.preview-copy {
    min-width: 0;
}

.preview-copy h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.preview-copy .prose {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.75;
}

.check-list {
    list-style: none;
    display: grid;
    gap: 10px;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    padding: 12px 14px;
    background: linear-gradient(135deg, #f6f3ff 0%, #ffffff 100%);
    border: 1px solid rgba(124, 107, 245, 0.1);
    border-radius: var(--radius-md);
}

.check-mark {
    background: linear-gradient(135deg, var(--brand-500), var(--brand-600));
    color: #fff;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 0.6875rem;
    flex-shrink: 0;
    margin-top: 2px;
    box-shadow: 0 4px 10px -4px rgba(95, 79, 224, 0.6);
}

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

/* 更精致的 iPhone 外框（Dynamic Island 风）*/
.iphone-frame {
    position: relative;
    width: 280px;
    aspect-ratio: 9 / 19;
    background: #1a1630;
    border-radius: 44px;
    padding: 10px;
    box-shadow:
        0 0 0 2px #2a234a,
        0 0 0 5px #e4defc,
        0 40px 80px -20px rgba(36, 24, 90, 0.45),
        inset 0 0 0 1px rgba(255, 255, 255, 0.06);
    transition: transform 0.3s ease;
    z-index: 2;
}

.iphone-frame:hover { transform: translateY(-6px); }

.iphone-frame::before {
    content: "";
    position: absolute;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 24px;
    background: #0e0a22;
    border-radius: 999px;
    z-index: 3;
}

.iphone-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 34px;
    display: block;
    background: #f5f3ff;
}

/* 手机外的装饰卡片 */
.preview-visual .deco-card {
    position: absolute;
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 12px 28px -10px rgba(92, 70, 210, 0.3);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1;
}

.preview-visual .deco-card .emoji {
    width: 30px;
    height: 30px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 0.95rem;
}

.deco-card.d-1 { top: 30px; left: -12px; }
.deco-card.d-1 .emoji { background: var(--gradient-card-a); }

.deco-card.d-2 { bottom: 80px; right: -10px; }
.deco-card.d-2 .emoji { background: var(--gradient-card-b); color: #7a4a00;}

/* ===== Download ===== */
.download-section {
    position: relative;
    padding: 88px 0;
    text-align: center;
    color: var(--text-primary);
    background:
        radial-gradient(60% 60% at 15% 10%, rgba(201, 187, 255, 0.45) 0%, rgba(201, 187, 255, 0) 70%),
        radial-gradient(50% 50% at 90% 90%, rgba(255, 210, 122, 0.45) 0%, rgba(255, 210, 122, 0) 70%),
        #f6f4ff;
    overflow: hidden;
}

.download-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.download-section .sub {
    font-size: 1.0625rem;
    margin-bottom: 40px;
    color: var(--text-secondary);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.download-row {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.app-store-download {
    display: inline-block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease;
}

.app-store-download:hover { transform: translateY(-3px); }

.download-badge {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 22px;
    border-radius: var(--radius-md);
    min-width: 220px;
    text-align: left;
    background: #0f0d22;
    color: #fff;
    box-shadow: 0 14px 30px -12px rgba(15, 13, 34, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.download-badge--android {
    background: linear-gradient(135deg, #2faa5a 0%, #14863f 100%);
    box-shadow: 0 14px 30px -12px rgba(20, 134, 63, 0.55);
}

.download-badge--harmony {
    background: linear-gradient(135deg, #e23854 0%, var(--harmony-red) 100%);
    box-shadow: 0 14px 30px -12px rgba(207, 10, 44, 0.55);
}

.download-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.14);
}

.download-text .download-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2px;
}

.download-text .download-subtitle {
    font-size: 0.8125rem;
    opacity: 0.75;
    font-weight: 500;
}

/* ===== Footer（底部 Tab Bar 样式致敬） ===== */
.site-footer {
    position: relative;
    background: #14102e;
    color: #dcd7f5;
    padding: 72px 0 36px;
}

.site-footer::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 187, 255, 0.4), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 36px;
    margin-bottom: 40px;
}

.site-footer h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: #fff;
    letter-spacing: 0.02em;
}

.site-footer p,
.site-footer .muted {
    color: #a29dc6;
    line-height: 1.7;
    font-size: 0.9375rem;
}

.footer-downloads {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-app-store {
    display: inline-block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease;
}

.footer-app-store:hover { transform: translateY(-2px); }

.footer-download-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.06);
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    min-width: 140px;
}

.footer-download-badge--android {
    background: linear-gradient(135deg, rgba(47, 170, 90, 0.25), rgba(20, 134, 63, 0.25));
    border-color: rgba(47, 170, 90, 0.45);
}

.footer-download-badge--harmony {
    background: linear-gradient(135deg, rgba(226, 56, 84, 0.25), rgba(207, 10, 44, 0.25));
    border-color: rgba(248, 113, 113, 0.45);
}

.footer-download-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.12);
}

.footer-download-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: #fff;
}

.footer-download-subtitle {
    font-size: 0.6875rem;
    color: rgba(220, 215, 245, 0.65);
}

.footer-bottom {
    border-top: 1px solid rgba(220, 215, 245, 0.12);
    padding-top: 24px;
    text-align: center;
    color: #7a75a0;
    font-size: 0.875rem;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-copy { margin: 0 auto; }
    .cta-buttons { justify-content: center; }
    .hero-visual { min-height: auto; margin-top: 24px; }

    .preview-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .preview-visual { order: -1; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }

    .hero { padding-bottom: 64px; }
    .phone-float--a { left: -20px; }
    .phone-float--b { right: -10px; }
    .phone-float--c { left: -30px; top: 260px; }

    .iphone-frame {
        width: 220px;
        border-radius: 34px;
        padding: 7px;
        box-shadow:
            0 0 0 1.5px #2a234a,
            0 0 0 3.5px #e4defc,
            0 30px 60px -16px rgba(36, 24, 90, 0.4),
            inset 0 0 0 1px rgba(255, 255, 255, 0.06);
    }
    .iphone-frame::before { width: 70px; height: 20px; top: 14px; }
    .iphone-frame img { border-radius: 27px; }

    .hero-visual { min-height: 480px; }
    .download-badge { min-width: 200px; }
}

@media (max-width: 480px) {
    .iphone-frame {
        width: 190px;
        border-radius: 30px;
        padding: 6px;
    }
    .iphone-frame::before { width: 60px; height: 18px; top: 12px; }
    .iphone-frame img { border-radius: 24px; }

    .hero-visual { min-height: 400px; }
    .hero-badge { font-size: 0.75rem; }
    .phone-float { font-size: 0.7rem; padding: 8px 10px; border-radius: 12px; }
    .phone-float .float-emoji { width: 26px; height: 26px; font-size: 0.85rem; border-radius: 8px; }
    .phone-float--a { left: -10px; }
    .phone-float--b { right: -6px; }
    .phone-float--c { left: -14px; top: 220px; }
}