/* ==========================================================================
   墩墩AI口播智能体 · 官网落地页样式
   ========================================================================== */

:root {
    --bg-deep: #0A0E1A;
    --bg-base: #0E1426;
    --bg-soft: #0B1020;
    --line: #1E2A3D;
    --line-strong: #2A3A52;
    --text: #E8ECF4;
    --text-dim: #8A90A0;
    --text-faint: #5A6378;
    --accent: #C9A961;
    --accent-light: #EBD9A6;
    --accent-mid: #A68B3C;
    --accent-deep: #8a7330;
    --grad-main: linear-gradient(135deg, #C9A961 0%, #A68B3C 50%, #8a7330 100%);
    --grad-soft: linear-gradient(135deg, rgba(166, 139, 60, .16) 0%, rgba(201, 169, 97, .06) 100%);
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, .6);
    --glow: 0 0 42px rgba(166, 139, 60, .22);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-deep);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

ul,
ol {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --------------------------------------------------------------------------
   导航栏
   -------------------------------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(5, 7, 15, .55);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease;
}

.navbar.scrolled {
    background: rgba(5, 7, 15, .9);
    border-bottom-color: var(--line);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-logo {
    width: 38px;
    height: 38px;
    border-radius: 11px;
}

.navbar-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: .3px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.navbar-menu a {
    font-size: 14.5px;
    color: var(--text-dim);
    position: relative;
    padding: 4px 0;
    transition: color .25s ease;
}

.navbar-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--grad-main);
    border-radius: 2px;
    transition: width .28s ease;
}

.navbar-menu a:hover {
    color: var(--text);
}

.navbar-menu a:hover::after {
    width: 100%;
}

.navbar-menu .nav-cta {
    padding: 8px 18px;
    border-radius: 999px;
    background: var(--grad-main);
    color: #06101f;
    font-weight: 700;
    border: none;
}

.navbar-menu .nav-cta::after {
    display: none;
}

.navbar-menu .nav-cta:hover {
    color: #06101f;
    filter: brightness(1.08);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.navbar-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 150px 24px 100px;
    overflow: hidden;
}

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

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(120, 160, 240, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 160, 240, .07) 1px, transparent 1px);
    background-size: 62px 62px;
    mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 30%, transparent 100%);
}

.hero-glow {
    position: absolute;
    top: -18%;
    left: 50%;
    transform: translateX(-50%);
    width: 1100px;
    height: 780px;
    background: radial-gradient(circle at 50% 50%, rgba(110, 150, 240, .22) 0%, rgba(110, 150, 240, .06) 42%, transparent 70%);
    filter: blur(28px);
    pointer-events: none;
}

.particles-canvas,
.mouse-trail-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.mouse-trail-canvas {
    z-index: 1;
    pointer-events: none;
}

.mouse-glow {
    position: absolute;
    z-index: 1;
    width: 0;
    height: 0;
    pointer-events: none;
    transition: opacity .4s ease;
    opacity: 0;
}

.mouse-glow.active {
    opacity: 1;
}

.trail-dot {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 240, 250, .9), rgba(110, 150, 240, 0));
}

.trail-1 {
    width: 90px;
    height: 90px;
    margin: -45px 0 0 -45px;
    opacity: .28;
}

.trail-2 {
    width: 56px;
    height: 56px;
    margin: -28px 0 0 -28px;
    opacity: .35;
}

.trail-3 {
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    opacity: .45;
}

.trail-4 {
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    opacity: .8;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 860px;
    text-align: center;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 26px;
}

.hero-title-main {
    font-size: clamp(32px, 5.2vw, 58px);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -.5px;
    background: linear-gradient(135deg, #ffffff 0%, #cfe2ff 42%, #C9A961 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-title-sub {
    font-size: clamp(20px, 3vw, 32px);
    font-weight: 600;
    color: var(--accent);
    letter-spacing: .5px;
}

.hero-description {
    font-size: 16.5px;
    color: var(--text-dim);
    margin-bottom: 20px;
}

.hero-miniprogram-pitch {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 9px 18px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .03);
    margin-bottom: 24px;
}

.hero-miniprogram-badge {
    font-size: 12.5px;
    font-weight: 700;
    padding: 3px 11px;
    border-radius: 999px;
    background: var(--grad-main);
    color: #06101f;
}

.hero-miniprogram-text {
    font-size: 14px;
    color: var(--text-dim);
}

.hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 34px;
    font-size: 13.5px;
    color: var(--text-faint);
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.meta-item svg {
    color: var(--accent-mid);
}

.meta-divider {
    opacity: .4;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 13px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .22s ease, box-shadow .22s ease, filter .22s ease, background .22s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad-main);
    color: #06101f;
    box-shadow: 0 10px 30px rgba(110, 150, 240, .3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 38px rgba(110, 150, 240, .42);
    filter: brightness(1.06);
}

.btn-secondary {
    background: rgba(255, 255, 255, .04);
    border-color: var(--line-strong);
    color: var(--text);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, .08);
    border-color: rgba(154, 186, 233, .45);
}

/* --------------------------------------------------------------------------
   通用 section 标题
   -------------------------------------------------------------------------- */
section {
    position: relative;
    padding: 92px 0;
}

.section-title {
    text-align: center;
    font-size: clamp(26px, 3.4vw, 38px);
    font-weight: 800;
    letter-spacing: -.3px;
    margin-bottom: 14px;
}

.section-description {
    text-align: center;
    color: var(--text-dim);
    font-size: 15.5px;
    max-width: 720px;
    margin: 0 auto 52px;
}

/* --------------------------------------------------------------------------
   下载区
   -------------------------------------------------------------------------- */
.download {
    background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-base) 100%);
}

.miniprogram-hero {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: var(--grad-soft);
    padding: 46px 40px;
    margin-bottom: 54px;
    position: relative;
    overflow: hidden;
}

.miniprogram-hero::before {
    content: "";
    position: absolute;
    top: -140px;
    right: -100px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(120, 160, 240, .2), transparent 68%);
    pointer-events: none;
}

.miniprogram-hero-inner {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.miniprogram-hero-label {
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-light);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.miniprogram-hero-title {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    margin-bottom: 14px;
}

.miniprogram-hero-desc {
    color: var(--text-dim);
    font-size: 15.5px;
    max-width: 640px;
    margin-bottom: 26px;
}

.miniprogram-hero-actions {
    margin-bottom: 30px;
}

.miniprogram-hero-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.miniprogram-hero-qr-img {
    width: 168px;
    height: 168px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line-strong);
    padding: 8px;
    background: #fff;
}

.miniprogram-hero-qr-hint {
    font-size: 13.5px;
    color: var(--text-faint);
}

.download-divider-text {
    text-align: center;
    color: var(--text-faint);
    font-size: 14px;
    margin-bottom: 30px;
    position: relative;
}

.download-divider-text::before,
.download-divider-text::after {
    content: "";
    position: absolute;
    top: 50%;
    width: calc(50% - 90px);
    height: 1px;
    background: var(--line);
}

.download-divider-text::before {
    left: 0;
}

.download-divider-text::after {
    right: 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.download-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .025);
    padding: 40px 32px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    transition: transform .28s ease, border-color .28s ease, background .28s ease;
}

.download-card:hover {
    transform: translateY(-4px);
    border-color: rgba(154, 186, 233, .35);
    background: rgba(255, 255, 255, .05);
}

.download-card h3 {
    font-size: 22px;
    font-weight: 700;
}

.download-card p {
    color: var(--text-dim);
    font-size: 14.5px;
    margin-bottom: 8px;
}

.download-icon {
    margin-bottom: 6px;
}

/* --------------------------------------------------------------------------
   使用指引
   -------------------------------------------------------------------------- */
.guide {
    background: var(--bg-base);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.guide-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .025);
    padding: 32px 28px;
    transition: transform .28s ease, border-color .28s ease;
}

.guide-card:hover {
    transform: translateY(-4px);
    border-color: rgba(154, 186, 233, .3);
}

.guide-card-ios {
    grid-column: span 1;
}

.guide-card-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.6px;
    color: var(--accent-light);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.guide-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 18px;
    line-height: 1.5;
}

.guide-steps {
    counter-reset: step;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
}

.guide-steps li {
    position: relative;
    padding-left: 34px;
    color: var(--text-dim);
    font-size: 14.5px;
    counter-increment: step;
}

.guide-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 3px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(154, 186, 233, .14);
    border: 1px solid rgba(154, 186, 233, .32);
    color: var(--accent-light);
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.guide-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.guide-actions a {
    font-size: 13.5px;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .04);
    color: var(--accent-light);
    transition: background .22s ease, border-color .22s ease;
}

.guide-actions a:hover {
    background: rgba(154, 186, 233, .14);
    border-color: rgba(154, 186, 233, .4);
}

.guide-command {
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: rgba(0, 0, 0, .32);
    padding: 14px 16px;
    overflow-x: auto;
    margin: 10px 0;
}

.guide-command code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
    color: var(--accent-light);
    white-space: nowrap;
}

.guide-note {
    font-size: 13.5px;
    color: var(--text-faint);
    margin-top: 14px;
}

/* --------------------------------------------------------------------------
   核心功能
   -------------------------------------------------------------------------- */
.features {
    background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-deep) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 22px;
}

.feature-card {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .025);
    padding: 34px 30px 30px;
    overflow: hidden;
    cursor: pointer;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease, background .3s ease;
}

.feature-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at 82% 0%, rgba(120, 160, 240, .16), transparent 58%);
    opacity: 0;
    transition: opacity .3s ease;
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: rgba(154, 186, 233, .38);
    box-shadow: var(--shadow-card);
    background: rgba(255, 255, 255, .045);
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-number {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 44px;
    font-weight: 800;
    line-height: 1;
    color: rgba(154, 186, 233, .12);
    letter-spacing: -2px;
}

.feature-icon {
    width: 62px;
    height: 62px;
    border-radius: var(--radius-md);
    background: rgba(154, 186, 233, .1);
    border: 1px solid rgba(154, 186, 233, .22);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.feature-title {
    font-size: 21px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--text-dim);
    font-size: 14.5px;
    margin-bottom: 20px;
    min-height: 78px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tags span {
    font-size: 12.5px;
    padding: 5px 13px;
    border-radius: 999px;
    border: 1px solid rgba(154, 186, 233, .24);
    background: rgba(154, 186, 233, .08);
    color: var(--accent-light);
}

/* --------------------------------------------------------------------------
   版本对比
   -------------------------------------------------------------------------- */
.versions {
    background: var(--bg-base);
}

.versions-header {
    margin-bottom: 44px;
}

.versions-intro {
    text-align: center;
    color: var(--text-faint);
    font-size: 14.5px;
    max-width: 680px;
    margin: 0 auto;
}

.versions-rail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
}

.version-card {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .025);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.version-card:hover {
    transform: translateY(-6px);
    border-color: rgba(154, 186, 233, .32);
}

.version-card.is-latest {
    border-color: rgba(154, 186, 233, .5);
    background: var(--grad-soft);
    box-shadow: 0 0 46px rgba(110, 150, 240, .16);
}

.version-badge {
    position: absolute;
    top: -13px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 700;
    padding: 5px 16px;
    border-radius: 999px;
    background: var(--grad-main);
    color: #06101f;
    white-space: nowrap;
}

.version-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}

.version-name {
    font-size: 30px;
    font-weight: 800;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.version-tagline {
    font-size: 14px;
    color: var(--text-dim);
}

.version-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.version-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14.5px;
    color: var(--text-dim);
}

.version-features li::before {
    content: "";
    flex: none;
    width: 17px;
    height: 17px;
    margin-top: 4px;
    border-radius: 50%;
    background: rgba(166, 139, 60, .16);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 24 24' fill='none' stroke='%23C9A961' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
    background-size: 10px;
    background-repeat: no-repeat;
    background-position: center;
}

.version-card.is-latest .version-features li {
    color: var(--text);
}

.version-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    font-size: 13.5px;
    color: var(--text-faint);
}

.version-foot .version-cta {
    color: var(--accent-light);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   商务合作
   -------------------------------------------------------------------------- */
.contact {
    background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-deep) 100%);
}

.qr-container {
    display: flex;
    justify-content: center;
}

.qr-card-horizontal {
    display: flex;
    align-items: center;
    gap: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .03);
    padding: 36px 44px;
    max-width: 760px;
    width: 100%;
    transition: border-color .3s ease, box-shadow .3s ease;
}

.qr-card-horizontal:hover {
    border-color: rgba(154, 186, 233, .3);
    box-shadow: var(--shadow-card);
}

.qr-image-wrapper {
    flex: none;
    padding: 10px;
    border-radius: var(--radius-md);
    background: #fff;
}

.qr-image {
    width: 168px;
    height: 168px;
}

.qr-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.qr-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-sm);
    background: rgba(154, 186, 233, .12);
    border: 1px solid rgba(154, 186, 233, .24);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
}

.qr-title {
    font-size: 22px;
    font-weight: 700;
}

.qr-description {
    color: var(--text-dim);
    font-size: 14.5px;
}

.qr-meta {
    display: flex;
    flex-direction: column;
    gap: 9px;
    margin-top: 6px;
}

.qr-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    color: var(--text-faint);
}

.qr-meta-item svg {
    color: var(--accent-mid);
    flex: none;
}

.qr-meta-item a {
    color: var(--accent-light);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.footer {
    background: #03050b;
    border-top: 1px solid var(--line);
    padding: 54px 0 32px;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-dim);
    font-size: 14px;
}

.footer-logo {
    width: 40px;
    height: 40px;
    border-radius: 12px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-dim);
    transition: color .22s ease;
}

.footer-links a:hover {
    color: var(--accent-light);
}

.footer-filing,
.footer-copyright {
    text-align: center;
    font-size: 13px;
    color: var(--text-faint);
    margin-top: 18px;
}

.footer-filing a:hover {
    color: var(--accent-light);
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .navbar-menu {
        position: fixed;
        top: 66px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(5, 7, 15, .98);
        backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--line);
        padding: 10px 24px 24px;
        transform: translateY(-12px);
        opacity: 0;
        pointer-events: none;
        transition: opacity .25s ease, transform .25s ease;
    }

    .navbar-menu.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .navbar-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, .05);
    }

    .navbar-menu a {
        display: block;
        padding: 14px 0;
        font-size: 15.5px;
    }

    .navbar-menu .nav-cta {
        text-align: center;
        margin-top: 14px;
    }

    .navbar-toggle {
        display: flex;
    }

    .qr-card-horizontal {
        flex-direction: column;
        text-align: center;
        padding: 30px 24px;
        gap: 26px;
    }

    .qr-info {
        align-items: center;
    }

    .qr-meta {
        align-items: center;
    }

    section {
        padding: 66px 0;
    }

    .feature-description {
        min-height: auto;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 120px 18px 70px;
    }

    .container {
        padding: 0 18px;
    }

    .miniprogram-hero {
        padding: 34px 22px;
    }

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

    .download-divider-text::before,
    .download-divider-text::after {
        width: calc(50% - 70px);
    }
}