/* ===== CSS Variables ===== */
:root {
    --color-obsidian: #030507;
    --color-ash: #f8f8f8;
    --color-slate: #28282a;
    --color-cyan: #2895f7;
    --color-purple: #8b5cf6;
    --color-purple-light: #a78bfa;
    --color-white: #ffffff;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    --font-main: "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-display: "Noto Sans SC", sans-serif;

    --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-slate);
    background: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s var(--transition-smooth);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 80px;
}

/* ===== Gradient Text ===== */
.gradient-text {
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all 0.4s var(--transition-smooth);
    cursor: pointer;
    border: none;
    font-family: var(--font-main);
}

.btn svg {
    transition: transform 0.4s var(--transition-smooth);
}

.btn:hover svg {
    transform: translateX(4px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--color-slate);
    border: 1.5px solid var(--color-gray-300);
}

.btn-outline:hover {
    border-color: var(--color-purple);
    color: var(--color-purple);
    transform: translateY(-2px);
}

.btn-small {
    padding: 10px 20px;
    font-size: 13px;
}

/* ===== Link Arrow ===== */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-purple);
    transition: gap 0.3s var(--transition-smooth);
}

.link-arrow:hover {
    gap: 10px;
}

/* ===== Section Label ===== */
.section-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-gray-400);
    margin-bottom: 12px;
    text-transform: uppercase;
}

/* ===== Section Title ===== */
.section-title {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-slate);
    position: relative;
    display: inline-block;
}

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

.section-title .dot {
    color: var(--color-cyan);
    margin-left: 4px;
}

.section-title .dot.light {
    color: var(--color-purple-light);
}

/* ===== Section Header ===== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 60px;
}

.header-left {
    flex: 1;
}

.header-right {
    text-align: right;
    color: var(--color-gray-500);
    font-size: 14px;
    line-height: 1.8;
}

.header-right p {
    margin-bottom: 12px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.4s var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.05);
    padding: 12px 0;
}

.nav-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-slate);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 14px;
    color: var(--color-gray-500);
    letter-spacing: 0.05em;
    line-height: 1.4;
}

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

.nav-link {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-gray-600);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
    transition: width 0.3s var(--transition-smooth);
    border-radius: 2px;
}

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

.nav-highlight {
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    color: var(--color-white) !important;
    padding: 8px 18px !important;
    border-radius: 100px;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.35);
    transition: all 0.4s var(--transition-smooth);
}

.nav-highlight::after {
    display: none !important;
}

.nav-highlight:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.5);
    color: var(--color-white) !important;
}

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

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    color: var(--color-white);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.4s var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.25);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.35);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-slate);
    border-radius: 2px;
    transition: all 0.3s var(--transition-smooth);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1001;
    padding: 100px 40px 40px;
    transition: right 0.5s var(--transition-smooth);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
}

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

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-slate);
    transition: all 0.3s var(--transition-smooth);
}

.mobile-menu-close:hover {
    background: var(--color-gray-200);
    transform: rotate(90deg);
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-link {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-slate);
    display: block;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.mobile-cta {
    display: inline-flex;
    margin-top: 32px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
    color: var(--color-white);
    border-radius: 100px;
    font-weight: 500;
}

.mobile-highlight {
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    color: var(--color-white) !important;
    padding: 10px 18px;
    border-radius: 100px;
    font-weight: 500;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.35);
    border-bottom: none !important;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: url('../hero.png') center center / cover no-repeat;
}

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

.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.4), transparent 70%);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(40, 149, 247, 0.3), transparent 70%);
    bottom: -10%;
    left: -5%;
    animation-delay: -3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.3), transparent 70%);
    top: 40%;
    left: 30%;
    animation-delay: -6s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 15px) scale(0.95); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 80px;
    display: flex;
    align-items: center;
    width: 100%;
    padding-top: 80px;
}

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

.hero-label {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.25em;
    color: var(--color-gray-400);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
    position: relative;
}

.hero-title .line {
    display: block;
}

.hero-lines {
    display: block;
    width: 420px;
    height: 30px;
    pointer-events: none;
    margin-top: -8px;
    margin-bottom: 8px;
}

.hero-desc {
    font-size: 16px;
    color: var(--color-gray-500);
    line-height: 1.8;
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

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

.hero-image {
    width: 100%;
    max-width: 640px;
    animation: heroFloat 6s ease-in-out infinite;
    filter: drop-shadow(0 20px 60px rgba(139, 92, 246, 0.15));
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-side-label {
    position: absolute;
    left: 80px;
    bottom: 80px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-gray-300);
    text-transform: uppercase;
    z-index: 2;
}

.hero-side-label span {
    transform: rotate(180deg);
}

/* ===== Services Section ===== */
.services {
    padding: 140px 0;
    background: #FDFDFE;
}

.services-header {
    align-items: flex-start;
}

.services-header .header-right {
    max-width: 360px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--color-white);
    border-radius: 20px;
    padding: 36px 28px;
    transition: all 0.5s var(--transition-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(145deg, #ffffff, #f0f0f5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-purple);
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
    transition: all 0.4s var(--transition-smooth);
    box-shadow:
        6px 6px 12px rgba(139, 92, 246, 0.08),
        -6px -6px 12px rgba(255, 255, 255, 0.9),
        inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

.service-icon::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(40, 149, 247, 0.1));
    opacity: 0;
    transition: opacity 0.4s var(--transition-smooth);
}

.service-card:hover .service-icon {
    background: linear-gradient(145deg, #f5f3ff, #e8e6ff);
    color: var(--color-purple);
    transform: scale(1.08) translateY(-2px);
    box-shadow:
        10px 10px 20px rgba(139, 92, 246, 0.12),
        -6px -6px 12px rgba(255, 255, 255, 0.95),
        inset 0 1px 1px rgba(255, 255, 255, 0.9);
}

.service-card:hover .service-icon::before {
    opacity: 1;
}

.service-icon svg {
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 4px rgba(139, 92, 246, 0.2));
}

.service-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.service-desc {
    font-size: 13px;
    color: var(--color-gray-500);
    line-height: 1.7;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-slate);
    font-size: 18px;
    position: relative;
    z-index: 1;
    transition: all 0.4s var(--transition-smooth);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.service-card:hover .service-link {
    background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
    color: var(--color-white);
    transform: translateX(4px);
}

/* ===== Cases Section ===== */
.cases {
    padding: 100px 0;
    background: #F1F2FE;
}

.cases-layout {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cases-sidebar {
    flex-shrink: 0;
    width: 180px;
}

.cases-sidebar .section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-slate);
    margin-bottom: 16px;
}

.cases-desc {
    color: var(--color-gray-500);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 32px;
}

.cases-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--color-white);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-slate);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.4s var(--transition-smooth);
}

.cases-more-btn svg {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
    border-radius: 50%;
    padding: 6px;
    color: var(--color-white);
    transition: transform 0.4s var(--transition-smooth);
}

.cases-more-btn:hover {
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.15);
}

.cases-more-btn:hover svg {
    transform: translateX(3px);
}

.cases-main {
    flex: 1;
    overflow: hidden;
}

.cases-nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1.5px solid var(--color-gray-200);
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-slate);
    transition: all 0.4s var(--transition-smooth);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.cases-nav-btn:hover {
    border-color: var(--color-purple);
    color: var(--color-purple);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.15);
}

.cases-carousel {
    overflow: hidden;
    position: relative;
}

.cases-track {
    display: flex;
    gap: 24px;
    transition: transform 0.6s var(--transition-smooth);
}

.case-card {
    flex: 0 0 calc(25% - 18px);
    min-width: 220px;
    border-radius: 16px;
    overflow: hidden;
    background: var(--color-white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.5s var(--transition-smooth);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.case-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.case-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--transition-smooth), filter 0.6s var(--transition-smooth);
}

.case-card:hover .case-image {
    transform: scale(1.05);
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.1) 40%, transparent 70%);
    opacity: 1;
    transition: opacity 0.4s;
}

.case-card .case-preview-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateY(10px);
    padding: 10px 24px;
    background: var(--color-white);
    color: var(--color-slate);
    border: none;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-main);
    cursor: pointer;
    opacity: 0;
    transition: all 0.4s var(--transition-smooth);
    z-index: 3;
    white-space: nowrap;
}

.case-card:hover .case-preview-btn {
    transform: translate(-50%, -50%) translateY(0);
    opacity: 1;
    transition-delay: 0.1s;
}

.case-card .case-preview-btn:hover {
    background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-cyan) 100%);
    color: var(--color-white);
}

.case-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 16px 16px;
    z-index: 2;
}

.case-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 4px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.case-tag {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.75);
}

/* ===== Process Section ===== */
.process {
    padding: 100px 0;
    background: #F8F9FE;
    position: relative;
    overflow: hidden;
}

.process-header .header-right p.dark {
    color: var(--color-gray-500);
}

.process-flow {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0;
    position: relative;
    z-index: 1;
}

.process-step {
    flex: 0 0 auto;
    text-align: center;
    padding: 0;
    position: relative;
}

.step-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: transparent;
    border: 1.5px solid rgba(139, 92, 246, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-purple);
    margin: 0 auto 12px;
    transition: all 0.4s var(--transition-smooth);
    position: relative;
}

.step-icon svg {
    stroke: var(--color-purple);
}

.step-number {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-purple);
    margin-bottom: 6px;
    letter-spacing: 0.08em;
}

.step-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-slate);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.step-desc {
    font-size: 12px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

.process-connector {
    width: 32px;
    height: 1px;
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.15), rgba(40, 149, 247, 0.15));
    margin-top: 26px;
    flex-shrink: 0;
    position: relative;
}

.process-connector::after {
    content: "";
    position: absolute;
    right: -3px;
    top: -2.5px;
    width: 0;
    height: 0;
    border-top: 3px solid transparent;
    border-bottom: 3px solid transparent;
    border-left: 5px solid rgba(139, 92, 246, 0.2);
}

/* ===== CTA + Footer Wrap ===== */
.cta-footer-wrap {
    position: relative;
    overflow: hidden;
    background: #0a0a14 url('../footer_bg.png') no-repeat center top;
    background-size: cover;
}

/* ===== CTA Section ===== */
.cta {
    padding: 100px 0 0;
    position: relative;
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: left;
    padding-bottom: 80px;

}

.cta-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
}

.cta-title .line {
    display: block;
    color: var(--color-white);
}

.cta-subtitle {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
    text-transform: uppercase;
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 0;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr 0.8fr;
    gap: 48px;
    padding-bottom: 50px;
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

.footer-logo .logo-subtitle {
    color: var(--color-gray-400);
}

.footer-desc {
    font-size: 16px;
    color: var(--color-gray-400);
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: all 0.4s var(--transition-smooth);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
    color: var(--color-white);
    transform: translateY(-3px);
}

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

.footer-nav-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav-list a {
    font-size: 16px;
    color: var(--color-gray-400);
    transition: all 0.3s;
}

.footer-nav-list a:hover {
    color: var(--color-purple-light);
    padding-left: 4px;
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    color: var(--color-gray-400);
}

.footer-contact-list li svg {
    color: var(--color-purple-light);
    flex-shrink: 0;
}

.footer-qr {
    text-align: center;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.qr-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.footer-qr p {
    font-size: 16px;
    color: var(--color-gray-500);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    text-align: center;
    color: var(--color-gray-500);
    font-size: 16px;
}


/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }\n\n/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .case-card {
        flex: 0 0 calc(33.333% - 16px);
    }
    .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    }
    .footer-qr {
        display: none;
    }
}

@media (max-width: 992px) {
    .container {
        padding: 0 40px;
    }
    .nav-container {
        padding: 0 40px;
    }
    .hero-content {
        padding: 0 40px;
        padding-top: 80px;
    }
    .hero-title {
        font-size: 42px;
    }
    .hero-lines {
        width: 320px;
        height: 24px;
    }
    .hero-side-label {
        display: none;
    }
    .nav-menu,
    .nav-cta {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }
    .cases-layout {
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
    }
    .cases-sidebar {
        width: 100%;
        text-align: left;
    }
    .cases-sidebar .section-title {
        font-size: 28px;
    }
    .cases-desc {
        margin-bottom: 16px;
    }
    .cases-nav-btn {
        display: none;
    }
    .cases-main {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        margin: 0 -40px;
        padding: 0 40px;
    }
    .cases-main::-webkit-scrollbar {
        display: none;
    }
    .cases-carousel {
        overflow: visible;
    }
    .case-card {
        flex: 0 0 320px;
        min-width: 320px;
    }
    .process-flow {
        flex-wrap: wrap;
        gap: 32px;
    }
    .process-step {
        flex: 0 0 calc(33.333% - 22px);
        text-align: center;
        padding: 0;
    }
    .step-icon {
        margin: 0 auto 12px;
    }
    .process-connector {
        display: none;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .footer-brand {
        grid-column: 1 / -1;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    .nav-container {
        padding: 0 20px;
    }
    .hero-content {
        padding: 0 20px;
        padding-top: 100px;
        padding-bottom: 60px;
    }
    .hero {
        min-height: auto;
    }
    .hero-title {
        font-size: 32px;
    }
    .hero-lines {
        width: 260px;
        height: 20px;
    }
    .hero-desc {
        font-size: 15px;
    }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    .section-title {
        font-size: 26px;
    }
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 40px;
    }
    .header-right {
        text-align: left;
    }
    .services {
        padding: 60px 0;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .service-card {
        padding: 28px 24px;
    }
    .cases {
        padding: 60px 0;
    }
    .cases-layout {
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
    }
    .cases-sidebar {
        text-align: left;
        width: 100%;
        margin-bottom: 8px;
    }
    .cases-sidebar .section-title {
        font-size: 26px;
        margin-bottom: 8px;
    }
    .cases-desc {
        margin-bottom: 16px;
        font-size: 13px;
    }
    .cases-more-btn {
        padding: 10px 18px;
        font-size: 13px;
    }
    .cases-nav-btn {
        display: none;
    }
    .cases-main {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        margin: 0 -20px;
        padding: 0 20px;
    }
    .cases-main::-webkit-scrollbar {
        display: none;
    }
    .cases-carousel {
        overflow: visible;
    }
    .case-card {
        flex: 0 0 280px;
        min-width: 280px;
    }
    .process {
        padding: 60px 0;
        background: #F8F9FE;
    }
    .process-step {
        flex: 0 0 calc(50% - 16px);
        padding: 0;
        text-align: center;
    }
    .step-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        border: 2px solid rgba(139, 92, 246, 0.4);
        background: transparent;
    }
    .step-number {
        font-size: 11px;
    }
    .step-title {
        font-size: 15px;
    }
    .step-desc {
        font-size: 12px;
    }
    .process-connector {
        display: none;
    }
    .cta {
        padding: 60px 0 0;
    }
    .cta-title {
        font-size: 28px;
    }
    .cta-content {
        padding-bottom: 40px;
    }
    .footer {
        padding: 60px 0 0;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    .hero-lines {
        width: 220px;
        height: 18px;
    }
    .hero-label {
        font-size: 11px;
    }
    .btn {
        padding: 12px 22px;
        font-size: 13px;
    }
    .process-step {
        flex: 0 0 100%;
    }
    .cases-sidebar .section-title {
        font-size: 22px;
    }
    .case-card {
        flex: 0 0 260px;
        min-width: 260px;
    }
    .cta {
        margin: 0 16px;
        border-radius: 20px 20px 0 0;
    }
    .cta-title {
        font-size: 24px;
    }
}