:root {
    --color-primary: #C89B3C;
    --color-primary-light: #E8C567;
    --color-primary-dark: #9A7328;
    --color-secondary: #0F1B2E;
    --color-secondary-light: #1A2B4A;
    --color-bg: #FFFFFF;
    --color-cream: #FDF9F0;
    --color-text: #1A1A1A;
    --color-text-secondary: #5A5A5A;
    --color-text-muted: #9A9A9A;
    --color-border: rgba(0, 0, 0, 0.08);
    --color-white: #FFFFFF;
    --color-success: #2E9D4A;
    --shadow-sm: 0 2px 8px rgba(15, 27, 46, 0.06);
    --shadow-md: 0 8px 24px rgba(15, 27, 46, 0.08);
    --shadow-lg: 0 16px 48px rgba(15, 27, 46, 0.12);
    --shadow-gold: 0 8px 32px rgba(200, 155, 60, 0.25);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 50px;
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    --container-max: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

.section {
    padding: 90px 0;
    position: relative;
}

.section-dark {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.section-cream {
    background-color: var(--color-cream);
}

.text-white {
    color: var(--color-white) !important;
}

.text-light {
    color: rgba(255, 255, 255, 0.75) !important;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-icon {
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-secondary);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(200, 155, 60, 0.35);
    filter: brightness(1.05);
}

.btn-outline {
    background: transparent;
    color: var(--color-secondary);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(200, 155, 60, 0.05);
}

.section-dark .btn-outline {
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.section-dark .btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(200, 155, 60, 0.1);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 48px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(200, 155, 60, 0.12);
    color: var(--color-primary-dark);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.section-tag-light {
    background: rgba(232, 197, 103, 0.15);
    color: var(--color-primary-light);
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
    color: var(--color-text);
}

.section-desc {
    font-size: 18px;
    color: var(--color-text-secondary);
    line-height: 1.75;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: all var(--transition-base);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    height: 72px;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: var(--color-secondary);
}

.logo-img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: var(--shadow-sm);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
    border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-secondary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--color-white);
    z-index: 1100;
    padding: 24px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-base);
    display: flex;
    flex-direction: column;
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.menu-close {
    color: var(--color-text);
    padding: 4px;
}

.mobile-nav-list {
    flex: 1;
}

.mobile-nav-list li {
    margin-bottom: 8px;
}

.mobile-nav-link {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link:hover {
    color: var(--color-primary);
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 27, 46, 0.5);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.overlay.open {
    opacity: 1;
    visibility: visible;
}

/* ===== Hero ===== */
.hero {
    min-height: auto;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: calc(var(--header-height) + 36px);
    padding-bottom: 60px;
    background: linear-gradient(180deg, #FFFFFF 0%, #FDF9F0 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    top: 10%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(232, 197, 103, 0.35) 0%, rgba(232, 197, 103, 0.05) 50%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 6s ease-in-out infinite;
}

.hero-pattern {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, transparent 0%, rgba(200, 155, 60, 0.03) 100%);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(200, 155, 60, 0.12);
    color: var(--color-primary-dark);
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    width: fit-content;
}

.tag-icon {
    color: var(--color-primary);
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 18px;
    color: var(--color-secondary);
}

.hero-subtitle {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 28px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 36px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

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

.phone-mockup {
    position: relative;
    width: 300px;
}

.phone-frame {
    background: var(--color-secondary);
    border-radius: 44px;
    padding: 12px;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 22px;
    background: var(--color-secondary);
    border-radius: 0 0 16px 16px;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    border-radius: 34px;
    aspect-ratio: 9 / 19.5;
    object-fit: cover;
    object-position: top;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 2;
    animation: float 5s ease-in-out infinite;
}

.card-top {
    top: 15%;
    left: -40px;
    animation-delay: 0.5s;
}

.card-bottom {
    bottom: 20%;
    right: -40px;
    animation-delay: 1s;
}

.floating-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 155, 60, 0.12);
    border-radius: 10px;
    font-size: 18px;
}

.floating-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

.floating-desc {
    font-size: 12px;
    color: var(--color-text-muted);
}

.hero-scroll {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 12px;
}

.scroll-arrow {
    width: 20px;
    height: 30px;
    border: 2px solid var(--color-text-muted);
    border-radius: 10px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 6px;
    background: var(--color-text-muted);
    border-radius: 2px;
    animation: scroll-wheel 1.5s ease-in-out infinite;
}

/* ===== Problems ===== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.problem-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: all var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.problem-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 155, 60, 0.1);
    color: var(--color-primary);
    border-radius: 16px;
    margin-bottom: 24px;
}

.card-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
}

.card-desc {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.75;
}

/* ===== Solutions ===== */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.solution-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.solution-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-6px);
    border-color: rgba(232, 197, 103, 0.3);
}

.solution-card .card-title {
    color: var(--color-white);
}

.solution-card .card-desc {
    color: rgba(255, 255, 255, 0.7);
}

.solution-number {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 48px;
    font-weight: 700;
    color: rgba(232, 197, 103, 0.1);
    line-height: 1;
}

.solution-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(232, 197, 103, 0.12);
    color: var(--color-primary-light);
    border-radius: 14px;
    margin-bottom: 20px;
}

/* ===== Features ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.feature-icon-bg {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(200, 155, 60, 0.15) 0%, rgba(232, 197, 103, 0.1) 100%);
    color: var(--color-primary);
    border-radius: 20px;
    margin: 0 auto 24px;
}

/* ===== For Who ===== */
.for-who-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.for-who-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.for-who-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.for-who-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.for-who-badge {
    padding: 6px 14px;
    background: var(--color-secondary);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 700;
}

.for-who-badge.badge-user {
    background: var(--color-primary);
    color: var(--color-secondary);
}

.for-who-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text);
}

.for-who-list {
    margin-bottom: 28px;
}

.for-who-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 16px;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
}

.for-who-list li:last-child {
    border-bottom: none;
}

.check-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(46, 157, 74, 0.12);
    color: var(--color-success);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.for-who-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.for-who-image img {
    width: 100%;
    aspect-ratio: 9 / 19.5;
    object-fit: cover;
    object-position: top;
}

/* ===== How It Works ===== */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 48px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    opacity: 0.3;
    z-index: 0;
}

.step {
    position: relative;
    z-index: 1;
    text-align: center;
}

.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    background: var(--color-white);
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    border: 2px solid var(--color-primary);
}

.step-content {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 48px 24px 32px;
    transition: all var(--transition-base);
}

.step:hover .step-content {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(200, 155, 60, 0.3);
}

.step-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-secondary);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
}

.step-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Showcase ===== */
.showcase-inner {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 80px;
    align-items: center;
}

.showcase-content .section-title {
    margin-bottom: 20px;
}

.showcase-features {
    margin: 36px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.showcase-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.showcase-feature:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(8px);
}

.showcase-feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(232, 197, 103, 0.12);
    border-radius: 12px;
    font-size: 22px;
}

.showcase-feature-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 2px;
}

.showcase-feature-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
}

.showcase-actions {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.qr-hint {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
}

.qr-code {
    width: 96px;
    height: 96px;
    object-fit: contain;
    background: var(--color-white);
    border-radius: var(--radius-sm);
    padding: 6px;
    box-shadow: var(--shadow-sm);
}

.showcase-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup-alt .phone-frame {
    animation-delay: 1s;
}

/* ===== Trust ===== */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.trust-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all var(--transition-base);
}

.trust-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.trust-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 155, 60, 0.1);
    color: var(--color-primary);
    border-radius: 12px;
    margin-bottom: 16px;
}

.trust-label {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.trust-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.5;
    word-break: break-all;
}

.trust-link {
    color: var(--color-primary-dark);
    transition: color var(--transition-fast);
}

.trust-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.trust-divider {
    color: var(--color-text-muted);
    margin: 0 6px;
}

/* ===== Contact ===== */
.contact-inner {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: start;
}

.contact-info .section-header {
    text-align: left;
    margin: 0 0 32px 0;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 155, 60, 0.1);
    color: var(--color-primary);
    border-radius: 10px;
    flex-shrink: 0;
}

.contact-item-label {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.contact-item-value {
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    line-height: 1.5;
}

.contact-form-wrapper {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-bg);
    transition: all var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(200, 155, 60, 0.1);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--color-text-muted);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: none;
    margin-top: 16px;
    padding: 14px;
    background: rgba(46, 157, 74, 0.1);
    color: var(--color-success);
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-align: center;
}

.form-success.show {
    display: block;
    animation: fade-in-up 0.4s ease;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 72px 0 32px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 64px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo-text {
    color: var(--color-white);
}

.footer-slogan {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-light);
    margin: 20px 0 12px;
}

.footer-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.75;
    max-width: 420px;
}

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

.footer-links-group h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer-links-group li {
    margin-bottom: 12px;
}

.footer-links-group a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
}

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

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
    color: var(--color-primary-light);
}

/* ===== Animations ===== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-16px); }
}

@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
}

@keyframes scroll-wheel {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 16px; }
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-tag,
    .hero-actions,
    .hero-stats {
        justify-content: center;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .showcase-content {
        order: 1;
    }

    .showcase-visual {
        order: 2;
    }

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

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

    .steps::before {
        display: none;
    }

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

@media (max-width: 768px) {
    :root {
        --header-height: 72px;
    }

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-desc {
        font-size: 16px;
    }

    .nav {
        display: none;
    }

    .header-actions .btn {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + 24px);
        padding-bottom: 48px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .hero-stats {
        justify-content: space-around;
        gap: 16px;
        width: 100%;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-label {
        font-size: 12px;
    }

    .phone-mockup {
        width: 240px;
    }

    .floating-card {
        display: none;
    }

    .problem-grid,
    .solution-grid,
    .feature-grid,
    .for-who-grid,
    .steps,
    .trust-grid {
        grid-template-columns: 1fr;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .showcase-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-info .section-header {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }

    .contact-details {
        max-width: 480px;
        margin: 0 auto;
    }

    .contact-form-wrapper {
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-title {
        font-size: 26px;
    }

    .hero-title {
        font-size: 32px;
    }

    .btn-lg {
        padding: 14px 24px;
        font-size: 15px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .trust-value {
        font-size: 14px;
    }
}

/* ===== Accessibility ===== */
@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;
    }
}