/* ============================================
   中健如医官网 - 云端守护主题
   取色自 APP 图标：天蓝→宝蓝渐变 + 青色光环 + 云朵白
   ============================================ */
:root {
    /* 云朵白 / 浅蓝底 */
    --foam: #F7FBFF;
    --ice: #EAF4FE;
    --mist: #D5E9FB;

    /* 图标主蓝 */
    --sky: #3FA7F4;
    --blue: #1D69EE;
    --blue-deep: #0E47B8;
    --blue-rgb: 29, 105, 238;
    --blue-deep-rgb: 14, 71, 184;

    /* 青色光环点缀 */
    --cyan: #2DC6F0;
    --cyan-light: #A5E2FA;
    --cyan-rgb: 45, 198, 240;

    /* 文字色 */
    --ink: #0F2B52;
    --ink-light: #3A5A80;
    --muted: #5F7DA0;
    --inverse: #FFFFFF;

    /* 字体 */
    --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
    --font-display: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;

    /* 圆角 */
    --radius-sm: 16px;
    --radius-md: 28px;
    --radius-lg: 40px;
    --radius-xl: 56px;
    --radius-full: 9999px;

    /* 阴影（柔和、偏蓝） */
    --shadow-sm: 0 2px 10px rgba(var(--blue-deep-rgb), 0.06);
    --shadow-md: 0 10px 28px rgba(var(--blue-deep-rgb), 0.10);
    --shadow-lg: 0 20px 52px rgba(var(--blue-deep-rgb), 0.16);

    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================
   全局基础
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--foam);
    color: var(--ink-light);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* 公共标题区 */
.section-header {
    margin-bottom: 52px;
    max-width: 640px;
}

.section-header h2,
.features-header h2 {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 2px;
    margin-bottom: 12px;
    line-height: 1.2;
}

.section-header p,
.features-header p {
    font-size: 17px;
    color: var(--muted);
}

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 15px 32px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
    min-height: 48px;
    min-width: 120px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
    color: var(--inverse);
    box-shadow: 0 8px 20px rgba(var(--blue-rgb), 0.30);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(var(--blue-rgb), 0.38);
    filter: brightness(1.05);
}

.btn-primary:focus-visible {
    outline: 3px solid var(--cyan);
    outline-offset: 3px;
}

.btn-secondary {
    background-color: var(--inverse);
    color: var(--blue);
    border: 2px solid var(--mist);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: var(--sky);
    color: var(--blue-deep);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 3px;
}

/* 亮色首屏下的反白按钮 */
.btn-inverse {
    background-color: var(--inverse);
    color: var(--blue-deep);
    box-shadow: 0 8px 20px rgba(14, 71, 184, 0.28);
}

.btn-inverse:hover {
    background-color: var(--cyan-light);
    color: var(--blue-deep);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(14, 71, 184, 0.34);
}

.btn-inverse:focus-visible {
    outline: 3px solid var(--cyan-light);
    outline-offset: 3px;
}

/* ============================================
   顶部导航（蓝色玻璃拟态，随首屏渐变）
   ============================================ */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(29, 105, 238, 0.22);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.top-nav.scrolled {
    background: rgba(14, 71, 184, 0.92);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.nav-logo img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(14, 71, 184, 0.4);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    padding: 8px 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 2px;
    width: 0;
    height: 2px;
    background-color: var(--cyan-light);
    border-radius: 2px;
    transition: width var(--transition-fast);
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: #fff;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
    width: 100%;
}

.nav-cta {
    padding: 9px 22px;
    border-radius: var(--radius-full);
    background-color: var(--inverse);
    color: var(--blue-deep);
    font-size: 14px;
    font-weight: 600;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-cta:hover {
    background-color: var(--cyan-light);
    color: var(--blue-deep);
}

.nav-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #fff;
    cursor: pointer;
    border-radius: 12px;
    transition: background-color var(--transition-fast);
}

.nav-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.14);
}

/* ============================================
   首屏 Hero（云端守护：青蓝渐变 + 云朵光斑 + 轨道环 + 云浪）
   ============================================ */
.hero-section {
    position: relative;
    padding: 150px 0 120px;
    background: linear-gradient(135deg, var(--cyan) 0%, var(--sky) 42%, var(--blue) 100%);
    overflow: hidden;
    color: var(--inverse);
}

/* 上方光晕 */
.hero-glow {
    position: absolute;
    top: -180px;
    left: 50%;
    transform: translateX(-50%);
    width: 820px;
    height: 560px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.30) 0%, transparent 70%);
    pointer-events: none;
}

/* 云朵光斑 */
.hero-bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 35%, rgba(255, 255, 255, 0.55), rgba(165, 226, 250, 0.22) 60%, transparent 72%);
    pointer-events: none;
    opacity: 0.75;
    animation: bubble-float 7s ease-in-out infinite;
}

.hero-bubble.b1 { width: 110px; height: 110px; top: 130px; left: 7%; }
.hero-bubble.b2 { width: 60px; height: 60px; top: 280px; right: 9%; animation-delay: 1.4s; }
.hero-bubble.b3 { width: 38px; height: 38px; top: 100px; right: 24%; animation-delay: 2.6s; }

@keyframes bubble-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-24px); }
}

/* 底部云浪 */
.hero-waves {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 180px;
    pointer-events: none;
    z-index: 1;
    line-height: 0;
}

.hero-waves svg {
    display: block;
    width: 100%;
    height: 100%;
}

.hero-waves .wave-back {
    fill: rgba(165, 226, 250, 0.35);
}

.hero-waves .wave-mid {
    fill: rgba(234, 244, 254, 0.55);
}

.hero-waves .wave-front {
    fill: var(--foam);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
    align-items: center;
}

.hero-copy {
    max-width: 580px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.30);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 22px;
    backdrop-filter: blur(6px);
}

.hero-copy h1 {
    font-family: var(--font-display);
    font-size: 68px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 8px;
    line-height: 1.1;
    margin-bottom: 16px;
    text-shadow: 0 6px 24px rgba(14, 71, 184, 0.35);
}

.hero-lead {
    font-size: 20px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 28px;
    letter-spacing: 1px;
    line-height: 1.7;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 34px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 15px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(6px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* 亮色首屏内的次按钮 */
.hero-actions .btn-secondary {
    background-color: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(6px);
    box-shadow: none;
}

.hero-actions .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.7);
}

/* 右侧图标：环绕轨道 */
.hero-figure {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.icon-orbit {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-orbit::before {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.22) 0%, transparent 68%);
    animation: halo 8s ease-in-out infinite;
}

/* 倾斜光环，呼应图标的环绕轨道 */
.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 150px;
    transform: translate(-50%, -50%) rotate(-18deg);
    border: 5px solid rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(165, 226, 250, 0.45), inset 0 0 20px rgba(165, 226, 250, 0.25);
    animation: orbit-sway 9s ease-in-out infinite;
    pointer-events: none;
}

.orbit-dot {
    position: absolute;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 12px rgba(255, 255, 255, 0.9);
    pointer-events: none;
}

.orbit-dot.d1 {
    width: 14px;
    height: 14px;
    top: 64px;
    right: 26px;
    animation: bubble-float 5s ease-in-out infinite;
}

.orbit-dot.d2 {
    width: 9px;
    height: 9px;
    bottom: 74px;
    left: 20px;
    animation: bubble-float 6s ease-in-out infinite 1.2s;
}

@keyframes halo {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.06); }
}

@keyframes orbit-sway {
    0%, 100% { transform: translate(-50%, -50%) rotate(-18deg); }
    50% { transform: translate(-50%, -50%) rotate(-13deg); }
}

.icon-orbit img {
    position: relative;
    z-index: 3;
    width: 210px;
    height: 210px;
    border-radius: 48px;
    box-shadow: 0 24px 64px rgba(14, 71, 184, 0.45);
}

/* ============================================
   核心优势（三列云卡片）
   ============================================ */
.features-section {
    position: relative;
    padding: 90px 0 100px;
    background-color: var(--foam);
}

.features-header {
    margin-bottom: 52px;
}

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

.feature-panel {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 40px 32px 36px;
    background: var(--inverse);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(var(--cyan-rgb), 0.20);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    overflow: hidden;
}

/* 卡片顶部渐变高光 */
.feature-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--cyan) 0%, var(--blue) 100%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.feature-panel:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-panel:hover::before {
    opacity: 1;
}

/* 角落浅青云斑 */
.feature-panel::after {
    content: '';
    position: absolute;
    right: -56px;
    bottom: -64px;
    width: 180px;
    height: 130px;
    border-radius: 50%;
    background: rgba(var(--cyan-rgb), 0.10);
    pointer-events: none;
}

.feature-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
    color: #fff;
    font-size: 28px;
    flex-shrink: 0;
    box-shadow: 0 10px 22px rgba(var(--blue-rgb), 0.26);
}

.feature-marker {
    position: absolute;
    top: 26px;
    right: 30px;
    font-family: var(--font-display);
    font-size: 30px;
    font-weight: 800;
    color: rgba(var(--blue-rgb), 0.10);
    letter-spacing: 1px;
    pointer-events: none;
}

.feature-body h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.feature-body p {
    font-size: 15px;
    color: var(--ink-light);
    line-height: 1.85;
}

/* ============================================
   关于我们
   ============================================ */
.company-section {
    padding: 90px 0;
    background: linear-gradient(180deg, var(--foam) 0%, var(--ice) 100%);
}

.company-card {
    max-width: 860px;
    padding: 48px 52px;
    background: var(--inverse);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(var(--cyan-rgb), 0.22);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.company-card::before {
    content: '';
    position: absolute;
    top: -110px;
    right: -110px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--cyan-rgb), 0.16) 0%, transparent 70%);
    pointer-events: none;
}

.company-card h3 {
    position: relative;
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.company-desc {
    position: relative;
    font-size: 15px;
    color: var(--ink-light);
    line-height: 1.9;
    margin-bottom: 26px;
}

.company-tags {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
    list-style: none;
    padding: 0;
}

.company-tags li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    background: var(--ice);
    color: var(--blue-deep);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    border: 1px solid var(--mist);
}

.company-tags li::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
}

.company-mission {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    background: linear-gradient(90deg, var(--cyan) 0%, var(--blue) 100%);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 10px 24px rgba(var(--blue-rgb), 0.28);
}

.company-mission i {
    font-size: 13px;
    opacity: 0.75;
}

/* ============================================
   下载引导（云端渐变卡片）
   ============================================ */
.download-section {
    padding: 90px 0 110px;
    background: linear-gradient(180deg, var(--ice) 0%, var(--foam) 100%);
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: '';
    position: absolute;
    top: -150px;
    left: 50%;
    transform: translateX(-50%);
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--cyan-rgb), 0.20) 0%, transparent 70%);
    pointer-events: none;
}

.download-card {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin: 0 auto;
    padding: 56px 60px;
    background: linear-gradient(135deg, var(--cyan) 0%, var(--sky) 45%, var(--blue) 100%);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 28px 60px rgba(var(--blue-rgb), 0.32);
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: -90px;
    right: -70px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

.download-card h2 {
    font-family: var(--font-display);
    font-size: 34px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.download-card > p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 34px;
}

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

/* 渐变卡片内的按钮反白 */
.download-card .btn-primary {
    background: var(--inverse);
    color: var(--blue-deep);
    box-shadow: 0 8px 20px rgba(14, 71, 184, 0.28);
}

.download-card .btn-primary:hover {
    background: var(--cyan-light);
    box-shadow: 0 12px 28px rgba(14, 71, 184, 0.34);
}

.download-card .btn-secondary {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.45);
    box-shadow: none;
    backdrop-filter: blur(6px);
}

.download-card .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.26);
    border-color: rgba(255, 255, 255, 0.75);
}

/* ============================================
   页脚（宝蓝渐变）
   ============================================ */
.main-footer {
    background: linear-gradient(180deg, var(--blue) 0%, var(--blue-deep) 100%);
    color: rgba(247, 251, 255, 0.72);
    padding: 52px 0 28px;
    margin-top: auto;
    position: relative;
}

.main-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(165, 226, 250, 0.55), transparent);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 28px;
    text-align: center;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.footer-logo img {
    width: 34px;
    height: 34px;
    border-radius: 10px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(247, 251, 255, 0.55);
    margin-bottom: 18px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 22px;
    margin-bottom: 6px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(247, 251, 255, 0.75);
    transition: color var(--transition-fast);
}

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

.footer-links span {
    color: rgba(247, 251, 255, 0.25);
}

.footer-copyright {
    padding-top: 22px;
    border-top: 1px solid rgba(247, 251, 255, 0.12);
}

.footer-copyright p {
    font-size: 12px;
    color: rgba(247, 251, 255, 0.45);
    margin-bottom: 4px;
    line-height: 1.7;
}

.footer-copyright a {
    color: var(--cyan-light);
    opacity: 0.85;
    transition: opacity var(--transition-fast);
}

.footer-copyright a:hover {
    opacity: 1;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 960px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }

    .hero-copy {
        margin: 0 auto;
    }

    .hero-meta,
    .hero-actions {
        justify-content: center;
    }

    .features-list {
        grid-template-columns: 1fr;
        max-width: 560px;
        margin: 0 auto;
    }
}

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

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(14, 71, 184, 0.96);
        backdrop-filter: blur(18px);
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 24px 20px;
        gap: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        width: 100%;
        padding: 14px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .nav-menu-toggle {
        display: flex;
    }

    .features-header {
        text-align: center;
    }

    .features-header h2 {
        font-size: 28px;
    }

    .hero-section {
        padding: 120px 0 100px;
    }

    .hero-copy h1 {
        font-size: 48px;
        letter-spacing: 5px;
    }

    .hero-lead {
        font-size: 17px;
    }

    .icon-orbit {
        width: 250px;
        height: 250px;
    }

    .orbit-ring {
        width: 310px;
        height: 118px;
        border-width: 4px;
    }

    .icon-orbit img {
        width: 160px;
        height: 160px;
        border-radius: 36px;
    }

    .company-card {
        padding: 34px 28px;
    }

    .company-card h3 {
        font-size: 22px;
    }

    .download-card {
        padding: 40px 28px;
    }

    .download-card h2 {
        font-size: 26px;
    }
}

@media (max-width: 375px) {
    .container {
        padding: 0 18px;
    }

    .hero-copy h1 {
        font-size: 38px;
        letter-spacing: 3px;
    }

    .hero-lead {
        font-size: 15px;
    }

    .btn {
        width: 100%;
        padding: 14px 24px;
    }

    .download-actions,
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .company-tags {
        flex-direction: column;
        align-items: flex-start;
    }

    .company-mission {
        flex-wrap: wrap;
        font-size: 14px;
    }

    .feature-body h3 {
        font-size: 20px;
    }
}