/* ===== CSS VARIABLES ===== */
:root {
    --brand: #06f;
    --brand-hover: #0052cc;
    --brand-glow: rgba(0, 102, 255, 0.35);
    --aino-start: #06f;
    --aino-end: #00d4aa;
    --aino-glow: rgba(0, 212, 170, 0.25);
    --bg-white: #fff;
    --bg-off: #f8f9fa;
    --bg-light: #f6f8fa;
    --bg-dark: #0a0a0a;
    --text-primary: #1a1a1a;
    --text-secondary: #5f6368;
    --text-tertiary: #9aa0a6;
    --text-white: #f8fafc;
    --border-light: rgba(0, 0, 0, 0.08);
    --border: rgba(0, 0, 0, 0.08);
    --radius-lg: 20px;
    --max-w: 88vw;
    --side-pad: 6vw;
    --nav-h: 64px;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 24px;
    --radius-sm: 12px;
    --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 16px 60px -12px rgba(0,0,0,0.12);
    --shadow-card-hover: 0 1px 3px rgba(0,0,0,0.04), 0 24px 72px -12px rgba(0,0,0,0.2);
    --font-family: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', -apple-system, BlinkMacSystemFont, sans-serif;
}

@media (max-width: 1023px) {
    :root {
        --side-pad: 20px;
        --max-w: calc(100vw - 40px);
    }
}

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

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

body {
    background: var(--bg-white);
    color: var(--text-primary);
    font-family: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Hiragino Sans GB', -apple-system, BlinkMacSystemFont, sans-serif;
    font-feature-settings: "kern" 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    line-height: 1.6;
}

::selection { background: #0066ff26; color: var(--text-primary); }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #00000026; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #00000040; }

img { height: auto; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ===== UTILITIES ===== */
.container { margin: 0 auto; max-width: var(--max-w); }
.gradient-text {
    background: linear-gradient(180deg, var(--aino-start), var(--aino-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.reveal { opacity: 0; transform: translateY(24px); transition: all 0.7s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.divider { background: var(--border-light); height: 1px; }

/* ===== NAVIGATION ===== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    height: var(--nav-h); display: flex; align-items: center;
    padding: 0 var(--side-pad);
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: all 0.5s var(--ease);
}
.nav.scrolled {
    backdrop-filter: blur(40px) saturate(2) brightness(1.05);
    -webkit-backdrop-filter: blur(40px) saturate(2) brightness(1.05);
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(255,255,255,0.85) 50%, rgba(240,248,255,0.8));
    border-bottom-color: rgba(255,255,255,0.5);
    box-shadow: inset 0 1px rgba(255,255,255,0.6), 0 4px 24px rgba(0,0,0,0.06);
}
.nav-inner { display: flex; align-items: center; width: 100%; }
.nav-logo {
    display: flex; align-items: center; gap: 0;
    margin-right: 48px; text-decoration: none;
    transition: opacity 0.2s;
}
.nav-logo:hover { opacity: 0.75; }
.nav-logo-icon {
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 900; font-size: 0.9rem;
    margin-right: 10px;
}
.nav-logo-icon img {
    width: 100%; height: 100%; object-fit: contain; border-radius: 10px;
}
.nav-logo-text {
    font-size: 1.15rem; font-weight: 700; color: var(--text-primary);
}
.nav-links { display: flex; align-items: center; gap: 36px; margin-right: auto; }
.nav-link {
    color: var(--text-secondary); cursor: pointer; font-size: 14px;
    font-weight: 500; gap: 4px; position: relative; text-decoration: none;
    transition: color 0.2s;
    display: flex; align-items: center;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link.active { color: var(--text-primary); font-weight: 600; }
.nav-link::after {
    content: ''; position: absolute; bottom: -4px; left: 0;
    width: 0; height: 2px; background: var(--brand);
    transition: width 0.3s var(--ease-out);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown-menu {
    position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px);
    min-width: 220px; background: rgba(255,255,255,0.98);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-radius: var(--radius-sm); border: 1px solid var(--border-light);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    padding: 8px 0; opacity: 0; pointer-events: none;
    transition: all 0.3s var(--ease-out); z-index: 1001;
}
.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1; pointer-events: auto; transform: translateX(-50%) translateY(0);
}
.nav-dropdown-item {
    display: block; padding: 10px 20px; font-size: 14px;
    color: var(--text-secondary); text-decoration: none;
    transition: all 0.2s; font-weight: 500;
}
.nav-dropdown-item:hover {
    color: var(--brand); background: rgba(0,102,255,0.04);
}
.nav-dropdown-sub {
    position: relative;
}
.nav-dropdown-sub > .nav-dropdown-item::after {
    content: '›'; float: right; font-size: 16px; line-height: 1;
}
.nav-dropdown-submenu {
    position: absolute; left: 100%; top: 0;
    min-width: 180px; background: rgba(255,255,255,0.98);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-radius: var(--radius-sm); border: 1px solid var(--border-light);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    padding: 8px 0; opacity: 0; pointer-events: none;
    transition: all 0.3s var(--ease-out);
}
.nav-dropdown-sub:hover > .nav-dropdown-submenu {
    opacity: 1; pointer-events: auto;
}
.nav-dropdown-divider {
    height: 1px; background: var(--border-light); margin: 4px 0;
}

.nav-cta {
    background: var(--text-primary); color: #fff; border: none;
    border-radius: 100px; cursor: pointer; font-family: inherit;
    font-size: 14px; font-weight: 500; padding: 10px 24px;
    transition: all 0.3s var(--ease-out); text-decoration: none;
}
.nav-cta:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.18);
    transform: translateY(-1px);
}

/* Mobile nav */
.nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-hamburger span {
    display: block; width: 22px; height: 2px; background: var(--text-primary);
    margin: 5px 0; transition: all 0.3s; border-radius: 2px;
}
.mobile-menu {
    opacity: 0; pointer-events: none; position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    background: rgba(255,255,255,0.98);
    overflow-y: auto; padding: calc(var(--nav-h) + 24px) 24px 24px;
    transform: translateY(-8px); transition: all 0.35s var(--ease-out);
    z-index: 999;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.mobile-link {
    border-bottom: 1px solid var(--border-light); color: var(--text-primary);
    display: block; font-size: 18px; font-weight: 600; padding: 16px 0;
    text-decoration: none; transition: color 0.2s;
}
.mobile-link:hover { color: var(--brand); }
.mobile-cta-btn {
    background: var(--text-primary); border-radius: 100px; color: #fff;
    display: block; font-family: inherit; font-size: 16px; font-weight: 500;
    padding: 16px; text-align: center; text-decoration: none;
    transition: all 0.3s var(--ease-out); margin-top: 20px;
}
.mobile-cta-btn:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.18); }

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

/* ===== HERO ===== */
.hero {
    align-items: center; background: var(--bg-white);
    display: flex; flex-direction: column; justify-content: center;
    min-height: 100vh; overflow: hidden;
    padding: calc(var(--nav-h) + 80px) var(--side-pad) 100px;
    position: relative; text-align: center;
}
.hero-particles-cv {
    height: 100%; left: 0; pointer-events: none;
    position: absolute; top: 0; width: 100%; z-index: 1;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 16px; border-radius: 100px;
    background: rgba(0, 102, 255, 0.06); border: 1px solid rgba(0, 102, 255, 0.15);
    color: var(--brand); font-size: 0.85rem; font-weight: 500;
    margin-bottom: 24px;
}
.hero-badge .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--brand); animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 {
    color: var(--text-primary);
    font-size: clamp(36px, 5.5vw, 80px);
    font-weight: 600; letter-spacing: -0.03em;
    line-height: 1.2; margin-bottom: 24px;
}
.hero-sub {
    color: var(--text-secondary);
    font-size: clamp(16px, 1.5vw, 20px);
    font-weight: 400; line-height: 1.7;
    margin-bottom: 48px; max-width: 520px; margin-left: auto; margin-right: auto;
}
.hero-btns {
    display: flex; flex-wrap: wrap; gap: 12px;
    justify-content: center; margin-bottom: 60px;
}

/* ===== BUTTONS ===== */
.btn-dark {
    align-items: center; background: var(--text-primary);
    border: none; border-radius: 100px; color: #fff;
    cursor: pointer; display: inline-flex; font-family: inherit;
    font-size: 16px; font-weight: 500; gap: 8px;
    padding: 16px 32px; text-decoration: none;
    transition: all 0.3s var(--ease-out);
}
.btn-dark:hover {
    box-shadow: 0 8px 28px rgba(0,0,0,0.2);
    transform: translateY(-2px);
}
.btn-light {
    align-items: center; background: var(--bg-white);
    border: 1.5px solid var(--border-light); border-radius: 100px;
    color: var(--text-primary); cursor: pointer;
    display: inline-flex; font-family: inherit;
    font-size: 16px; font-weight: 500; gap: 8px;
    overflow: hidden; padding: 15px 32px;
    position: relative; text-decoration: none;
    transition: all 0.3s var(--ease-out);
}
.btn-light::before {
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    border-radius: 100px; content: "";
    inset: -1.5px;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0; padding: 1.5px; position: absolute;
    transition: opacity 0.3s var(--ease-out);
}
.btn-light:hover::before { opacity: 1; }
.btn-light:hover {
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.15);
    transform: translateY(-2px);
}

/* ===== SECTION COMMON ===== */
.section { padding: clamp(80px, 10vw, 140px) var(--side-pad); }
.section-inner { margin: 0 auto; max-width: var(--max-w); }
.section-header { text-align: center; margin-bottom: clamp(48px, 6vw, 80px); }
.section-tag {
    display: inline-block; padding: 4px 14px; border-radius: 100px;
    background: rgba(0, 102, 255, 0.06); color: var(--brand);
    font-size: 0.8rem; font-weight: 600; margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.section-title {
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 600; letter-spacing: -0.03em;
    line-height: 1.2; margin-bottom: 16px;
}
.section-title .subtitle {
    color: var(--text-secondary); display: block;
    font-size: clamp(16px, 1.4vw, 22px);
    font-weight: 500; letter-spacing: -0.01em;
    line-height: 1.5; margin-top: 8px;
}
.section-desc {
    color: var(--text-secondary);
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.75; max-width: 480px;
    margin: 0 auto;
}

/* ===== SOCIAL PROOF / CLIENTS ===== */
.social-proof {
    background: #f6f7f9; overflow: hidden; padding: 58px 0;
    position: relative;
}
.logo-wrap { position: relative; }
.logo-wrap::before, .logo-wrap::after {
    bottom: 0; content: ""; pointer-events: none;
    position: absolute; top: 0; width: 160px; z-index: 2;
}
.logo-wrap::before { background: linear-gradient(90deg, #f6f7f9, transparent); left: 0; }
.logo-wrap::after { background: linear-gradient(270deg, #f6f7f9, transparent); right: 0; }
.logo-track {
    align-items: center; display: flex; gap: 48px;
    width: max-content;
}
.logo-track.t1 { animation: scrollL 45s linear infinite; }
.logo-track.t2 { animation: scrollR 50s linear infinite; margin-top: 20px; }
@keyframes scrollL { 0% { transform: translate(0); } 100% { transform: translate(-50%); } }
@keyframes scrollR { 0% { transform: translate(-50%); } 100% { transform: translate(0); } }
.logo-item {
    cursor: default; flex-shrink: 0; height: 36px;
    position: relative; transition: transform 0.3s var(--ease-out);
    padding: 8px 20px; background: white; border-radius: 8px;
    font-weight: 600; color: var(--text-tertiary); font-size: 0.9rem;
    border: 1px solid var(--border-light);
}
.logo-item:hover { transform: scale(1.08); color: var(--brand); }

/* ===== CONTENT GRID (2-col) ===== */
.content-grid {
    align-items: center; display: grid;
    gap: clamp(48px, 6vw, 100px);
    grid-template-columns: 1fr 1fr;
}
@media (max-width: 768px) {
    .content-grid { grid-template-columns: 1fr; }
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-white); border-radius: var(--radius);
    border: 1px solid var(--border-light);
    padding: clamp(24px, 4vw, 40px);
    transition: all 0.4s var(--ease-out);
    overflow: hidden;
}
.card:hover {
    border-color: rgba(0, 102, 255, 0.3);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.card-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; margin-bottom: 20px;
}
.card h3 {
    font-size: clamp(18px, 1.5vw, 22px);
    font-weight: 600; letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.card p {
    color: var(--text-secondary);
    font-size: clamp(14px, 1vw, 15px);
    line-height: 1.75;
}

/* ===== FEATURE CARDS GRID ===== */
.features-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ===== STATS ===== */
.stats-section {
    background: var(--bg-dark); padding: 80px var(--side-pad);
    position: relative; overflow: hidden;
}
.stats-section::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 50%, rgba(0,102,255,0.1) 0%, transparent 60%);
}
.stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 32px; position: relative; z-index: 2;
}
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
.stat-item { text-align: center; }
.stat-number {
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 700; line-height: 1;
    margin-bottom: 8px;
}
.stats-section .stat-number { color: white; }
.stats-section .stat-label { color: rgba(255,255,255,0.6); }
.stat-number .unit {
    font-size: 0.6em; color: var(--aino-end);
    margin-left: 2px;
}
.stat-label { font-size: 0.9rem; color: var(--text-secondary); }

/* ===== CASE CARDS ===== */
.cases-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.case-card {
    border-radius: var(--radius); overflow: hidden;
    background: var(--bg-white); border: 1px solid var(--border-light);
    transition: all 0.4s var(--ease-out);
}
.case-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.case-image {
    height: 200px; position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.case-image-content {
    position: relative; z-index: 2; text-align: center; color: white;
}
.case-image-content .case-icon { font-size: 2.4rem; margin-bottom: 8px; }
.case-image-content .case-label { font-size: 0.85rem; opacity: 0.8; }
.case-body { padding: 24px; }
.case-body h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.case-body p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }
.case-tags { display: flex; gap: 6px; margin-top: 12px; flex-wrap: wrap; }
.case-tags span {
    padding: 3px 10px; border-radius: 100px; font-size: 0.75rem;
    background: var(--bg-off); color: var(--text-secondary); font-weight: 500;
}

/* ===== EXPLORE LINK ===== */
.explore {
    align-items: center; border: 1.5px solid var(--border-light);
    border-radius: 100px; color: var(--text-primary);
    display: inline-flex; font-size: 15px; font-weight: 500;
    gap: 6px; margin-top: 32px; padding: 12px 28px;
    text-decoration: none; transition: all 0.3s var(--ease-out);
}
.explore:hover {
    border-color: rgba(0,0,0,0.2);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transform: translateY(-1px);
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: clamp(80px, 10vw, 140px) var(--side-pad);
    text-align: center; position: relative; overflow: hidden;
    background: var(--bg-off);
}
.cta-section h2 {
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 600; letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.cta-section p {
    color: var(--text-secondary);
    font-size: clamp(15px, 1.2vw, 18px);
    margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto;
}
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-white); border-top: 1px solid var(--border-light);
    padding: 56px var(--side-pad) 28px; position: relative; overflow: hidden;
}
.footer-particles {
    height: 100%; left: 0; pointer-events: none;
    position: absolute; top: 0; width: 100%; z-index: 0;
}
.footer-inner { margin: 0 auto; max-width: var(--max-w); position: relative; z-index: 1; }
.footer-grid {
    display: grid; gap: 40px;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    margin-bottom: 48px;
}
@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand-logo { height: 28px; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-brand-logo .logo-icon {
    width: 32px; height: 32px; border-radius: 8px;
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 900; font-size: 0.8rem;
}
.footer-brand-logo span { font-size: 1.1rem; font-weight: 700; }
.footer-brand-text { color: var(--text-secondary); font-size: 13px; line-height: 1.65; margin-bottom: 16px; }
.footer-contact-list { display: flex; flex-direction: column; gap: 8px; }
.footer-contact-list span {
    font-size: 13px; color: var(--text-secondary);
    display: flex; align-items: center; gap: 8px;
}
.footer-col h5 {
    color: var(--text-primary); font-size: 11px; font-weight: 700;
    letter-spacing: 1.5px; margin-bottom: 16px; text-transform: uppercase;
}
.footer-col a {
    color: var(--text-secondary); display: block;
    font-size: 13px; margin-bottom: 10px;
    text-decoration: none; transition: color 0.2s;
}
.footer-col a:hover { color: var(--text-primary); }
.footer-bottom {
    align-items: center; display: flex;
    justify-content: space-between; padding-top: 20px;
    flex-wrap: wrap; gap: 12px;
}
.footer-copy { color: var(--text-tertiary); font-size: 12px; }
.footer-copy a { color: var(--text-tertiary); text-decoration: none; transition: color 0.2s; }
.footer-copy a:hover { color: var(--text-primary); }

/* ===== PAGE HERO (sub pages) ===== */
.page-hero {
    padding: calc(var(--nav-h) + 80px) var(--side-pad) 80px;
    text-align: center; position: relative; overflow: hidden;
    background: var(--bg-white);
}
.page-hero-particles {
    height: 100%; left: 0; pointer-events: none;
    position: absolute; top: 0; width: 100%; z-index: 1;
}
.page-hero-content, .page-hero-inner { position: relative; z-index: 2; }
.page-hero h1, .page-hero-title {
    font-size: clamp(32px, 5vw, 64px);
    font-weight: 600; letter-spacing: -0.03em;
    line-height: 1.2; margin-bottom: 16px;
}
.page-hero p, .page-hero-desc {
    color: var(--text-secondary);
    font-size: clamp(16px, 1.3vw, 20px);
    max-width: 560px; margin: 0 auto; line-height: 1.7;
}

/* ===== CASE GRID (cases page) ===== */
.case-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    margin-top: 48px;
}
.case-card-img {
    height: 180px; display: flex; align-items: center; justify-content: center;
    position: relative; border-radius: var(--radius) var(--radius) 0 0;
    color: #fff; font-size: 2.5rem;
}
.case-card-tag {
    position: absolute; top: 16px; left: 16px;
    padding: 4px 12px; border-radius: 100px;
    background: rgba(255,255,255,0.15); backdrop-filter: blur(8px);
    font-size: 0.75rem; font-weight: 500; color: #fff;
}
.case-card-body { padding: 24px; }
.case-card-body h3, .case-card-title {
    font-size: 1.1rem; font-weight: 600; margin-bottom: 8px;
}
.case-card-desc {
    font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7;
    margin-bottom: 16px;
}
.case-card-stats {
    display: flex; gap: 24px; margin-bottom: 12px;
}
.case-card-stats div { display: flex; flex-direction: column; }
.case-card-stats strong {
    font-size: 1.3rem; font-weight: 700;
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}
.case-card-stats span { font-size: 0.75rem; color: var(--text-tertiary); }
.case-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.case-card-tags span {
    padding: 3px 10px; border-radius: 100px; font-size: 0.75rem;
    background: var(--bg-off); color: var(--text-secondary); font-weight: 500;
}

/* ===== LOGO CAROUSEL (cases page) ===== */
.logo-carousel {
    overflow: hidden; position: relative; margin-top: 32px;
}
.logo-carousel::before, .logo-carousel::after {
    content: ""; pointer-events: none; position: absolute; top: 0; bottom: 0;
    width: 120px; z-index: 2;
}
.logo-carousel::before { background: linear-gradient(90deg, var(--bg-white), transparent); left: 0; }
.logo-carousel::after { background: linear-gradient(270deg, var(--bg-white), transparent); right: 0; }
.logo-carousel-track {
    display: flex; gap: 32px; width: max-content;
    animation: scrollL 30s linear infinite;
}

/* ===== ABOUT INTRO ===== */
.about-intro {
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center;
}
@media (max-width: 768px) { .about-intro { grid-template-columns: 1fr; } }
.about-intro-content p {
    font-size: 0.95rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 12px;
}
.about-intro-stats {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.about-stat-card {
    padding: 24px; border-radius: var(--radius-sm);
    background: var(--bg-off); border: 1px solid var(--border-light);
    text-align: center; transition: all 0.3s var(--ease-out);
}
.about-stat-card:hover {
    border-color: rgba(0,102,255,0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,102,255,0.06);
}
.about-stat-number {
    font-size: 2rem; font-weight: 700; line-height: 1;
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}
.about-stat-number span { font-size: 0.7em; }
.about-stat-label {
    font-size: 0.8rem; color: var(--text-tertiary); margin-top: 6px; font-weight: 500;
}

/* ===== NAV LINK ACTIVE ===== */
.nav-link--active { color: var(--text-primary); font-weight: 600; }
.nav-link--active::after { width: 100%; }

/* ===== BG LIGHT ===== */
.bg-light { background: var(--bg-off); }

/* ===== PRODUCT CARDS ===== */
.products-grid, .product-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.product-card {
    background: var(--bg-white); border-radius: var(--radius);
    border: 1px solid var(--border-light);
    padding: 32px; transition: all 0.4s var(--ease-out);
    position: relative; overflow: hidden;
}
.product-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--aino-start), var(--aino-end));
    opacity: 0; transition: opacity 0.3s;
}
.product-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.product-card:hover::before { opacity: 1; }
.product-card .p-icon, .product-card-icon {
    width: 52px; height: 52px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(0,212,170,0.08));
}
.product-card h4, .product-card-title {
    font-size: 1.15rem; font-weight: 600; margin-bottom: 8px;
    letter-spacing: -0.01em;
}
.product-card p, .product-card-desc {
    color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7;
    margin-bottom: 16px;
}
.product-features { list-style: none; margin-bottom: 20px; }
.product-features li {
    font-size: 0.85rem; color: var(--text-secondary);
    padding: 4px 0; display: flex; align-items: center; gap: 8px;
}
.product-features li::before {
    content: ''; width: 5px; height: 5px; border-radius: 50%;
    background: var(--aino-end); flex-shrink: 0;
}

/* ===== ABOUT PAGE ===== */
.about-hero {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8fff8 100%);
}
.timeline { position: relative; padding: 20px 0; }
.timeline::before {
    content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
    width: 2px; background: var(--border-light); transform: translateX(-50%);
}
.timeline-item {
    display: flex; margin-bottom: 40px; position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row-reverse; }
.timeline-dot {
    position: absolute; left: 50%; top: 20px;
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--brand); border: 3px solid white;
    box-shadow: 0 0 0 3px rgba(0,102,255,0.2);
    transform: translateX(-50%); z-index: 2;
}
.timeline-content {
    width: 45%; padding: 24px; background: var(--bg-white);
    border-radius: var(--radius-sm); border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
}
.timeline-year {
    font-size: 0.85rem; font-weight: 700; color: var(--brand);
    margin-bottom: 8px;
}
.timeline-content h3, .timeline-content h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; }
.timeline-content p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; }

@media (max-width: 768px) {
    .timeline::before { left: 20px; }
    .timeline-item, .timeline-item:nth-child(odd) { flex-direction: row; padding-left: 50px; }
    .timeline-dot { left: 20px; }
    .timeline-content { width: 100%; }
}

/* ===== CONTACT PAGE ===== */
.contact-grid {
    display: grid; gap: 40px;
    grid-template-columns: 1fr 1fr;
}
@media (max-width: 768px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info-card {
    background: var(--bg-white); border-radius: var(--radius);
    border: 1px solid var(--border-light); padding: 40px;
    box-shadow: var(--shadow-card);
}
.contact-info-card h3 {
    font-size: 1.5rem; font-weight: 600; margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.contact-item {
    display: flex; gap: 16px; align-items: flex-start;
    margin-bottom: 24px;
}
.contact-item .c-icon {
    width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(0,212,170,0.08));
}
.contact-item h5 { font-size: 0.85rem; color: var(--text-tertiary); font-weight: 500; margin-bottom: 4px; }
.contact-item p { font-size: 1rem; font-weight: 500; }
.contact-item a { color: var(--brand); text-decoration: none; }
.contact-item a:hover { text-decoration: underline; }

.contact-form-card {
    background: var(--bg-white); border-radius: var(--radius);
    border: 1px solid var(--border-light); padding: 40px;
    box-shadow: var(--shadow-card);
}
.contact-form-card h3 {
    font-size: 1.5rem; font-weight: 600; margin-bottom: 24px;
    letter-spacing: -0.02em;
}
.form-group { margin-bottom: 20px; }
.form-label {
    display: block; font-size: 14px; font-weight: 500;
    margin-bottom: 8px; color: var(--text-primary);
}
.form-input {
    width: 100%; padding: 12px 16px; border-radius: 10px;
    border: 1.5px solid var(--border-light);
    background: var(--bg-off); color: var(--text-primary);
    font-family: inherit; font-size: 15px;
    transition: all 0.2s var(--ease);
    outline: none;
}
.form-input:focus {
    background: var(--bg-white);
    border-color: var(--brand);
    box-shadow: 0 0 0 3px var(--brand-glow);
}
.form-input::placeholder { color: var(--text-tertiary); }
textarea.form-input { min-height: 120px; resize: vertical; line-height: 1.5; }

/* ===== QR CODE ===== */
.qr-section {
    text-align: center; margin-top: 32px;
    padding: 24px; background: var(--bg-off);
    border-radius: var(--radius-sm);
}
.qr-section .qr-placeholder {
    width: 160px; height: 160px; margin: 0 auto 12px;
    background: white; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-light);
    font-size: 0.85rem; color: var(--text-tertiary);
}
.qr-section p { font-size: 0.85rem; color: var(--text-secondary); }

/* ===== CLICK RIPPLE ===== */
.click-ripple {
    position: fixed; pointer-events: none; z-index: 9999;
    width: 20px; height: 20px; border-radius: 50%;
    border: 2px solid var(--brand);
    transform: translate(-50%, -50%) scale(0);
    animation: ripple-out 0.6s var(--ease-out) forwards;
}
@keyframes ripple-out {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(4); opacity: 0; }
}

/* ===== CUSTOM CURSOR ===== */
.custom-cursor {
    position: fixed; pointer-events: none; z-index: 9998;
    width: 20px; height: 20px; border-radius: 50%;
    background: rgba(0, 102, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
    mix-blend-mode: normal;
}
.custom-cursor.hovering {
    width: 40px; height: 40px;
    background: rgba(0, 102, 255, 0.1);
}

/* ===== MOUSE GLOW ===== */
.mouse-glow {
    position: fixed; pointer-events: none; z-index: 0;
    width: 400px; height: 400px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,102,255,0.04) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
}

/* ===== PAGE TRANSITIONS ===== */
.page-enter {
    animation: pageEnter 0.5s var(--ease-out) forwards;
}
@keyframes pageEnter {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== TYPING CURSOR ===== */
.typing-cursor {
    display: inline-block; width: 3px; height: 1em;
    background: var(--brand); margin-left: 4px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ===== SCROLL PROGRESS ===== */
.scroll-progress {
    position: fixed; top: 0; left: 0; height: 3px;
    background: linear-gradient(90deg, var(--aino-start), var(--aino-end));
    z-index: 1001; transition: width 0.1s;
    width: 0%;
}

/* ===== FLOATING WIDGET ===== */
.float-widget {
    position: fixed; right: 20px; bottom: 100px; z-index: 998;
    display: flex; flex-direction: column; gap: 12px;
}
.float-widget-btn {
    width: 52px; height: 52px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; border: none; position: relative;
    transition: all 0.3s var(--ease-out);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}
.float-widget-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(0,0,0,0.18);
}
.float-widget-btn .fw-tooltip {
    position: absolute; right: 64px; top: 50%; transform: translateY(-50%);
    background: var(--text-primary); color: #fff; padding: 6px 14px;
    border-radius: 6px; font-size: 13px; white-space: nowrap;
    opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.float-widget-btn:hover .fw-tooltip { opacity: 1; }
.fw-online { background: linear-gradient(135deg, var(--aino-start), var(--aino-end)); color: #fff; }
.fw-wechat { background: #07c160; color: #fff; }
.fw-phone { background: var(--brand); color: #fff; }
.fw-top {
    background: rgba(0,0,0,0.06); color: var(--text-primary);
    width: 44px; height: 44px; margin-top: 4px;
}
.fw-top:hover { background: rgba(0,0,0,0.1); }

/* WeChat popup */
.wechat-popup {
    position: fixed; right: 84px; bottom: 152px; z-index: 999;
    background: #fff; border-radius: var(--radius-sm);
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    padding: 20px; text-align: center;
    opacity: 0; pointer-events: none; transform: translateY(8px);
    transition: all 0.3s var(--ease-out);
}
.wechat-popup.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.wechat-popup img { width: 160px; height: 160px; border-radius: 8px; margin-bottom: 8px; }
.wechat-popup p { font-size: 13px; color: var(--text-secondary); }

/* Chat popup */
.chat-popup {
    position: fixed; right: 84px; bottom: 152px; z-index: 999;
    width: 340px; background: #fff; border-radius: var(--radius-sm);
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    opacity: 0; pointer-events: none; transform: translateY(8px);
    transition: all 0.3s var(--ease-out); overflow: hidden;
}
.chat-popup.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.chat-popup-header {
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    color: #fff; padding: 16px 20px; font-size: 15px; font-weight: 600;
    display: flex; align-items: center; justify-content: space-between;
}
.chat-popup-close {
    background: none; border: none; color: #fff; font-size: 20px;
    cursor: pointer; padding: 0 4px; line-height: 1;
}
.chat-popup-body { padding: 20px; }
.chat-msg {
    display: flex; gap: 10px; margin-bottom: 16px;
}
.chat-msg-avatar {
    width: 36px; height: 36px; border-radius: 50%; min-width: 36px;
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 14px; font-weight: 600;
}
.chat-msg-bubble {
    background: #f0f2f5; border-radius: 12px; padding: 12px 16px;
    font-size: 14px; line-height: 1.7; color: var(--text-primary);
    max-width: 260px;
}
.chat-msg-bubble a { color: var(--brand); text-decoration: none; }
.chat-input-row {
    display: flex; gap: 8px; margin-top: 12px;
}
.chat-input-row input {
    flex: 1; border: 1px solid var(--border-light); border-radius: 8px;
    padding: 10px 14px; font-size: 14px; outline: none;
    transition: border-color 0.2s;
}
.chat-input-row input:focus { border-color: var(--brand); }
.chat-input-row button {
    background: linear-gradient(135deg, var(--aino-start), var(--aino-end));
    color: #fff; border: none; border-radius: 8px; padding: 10px 18px;
    font-size: 14px; cursor: pointer; white-space: nowrap;
    transition: opacity 0.2s;
}
.chat-input-row button:hover { opacity: 0.85; }

/* ===== DETAIL PAGE ===== */
.detail-hero {
    padding: calc(var(--nav-h) + 60px) var(--side-pad) 60px;
    text-align: center; position: relative; overflow: hidden;
    background: var(--bg-white);
}
.detail-hero-particles {
    height: 100%; left: 0; pointer-events: none;
    position: absolute; top: 0; width: 100%; z-index: 1;
}
.detail-hero-content { position: relative; z-index: 2; }
.detail-hero h1 {
    font-size: clamp(28px, 4vw, 52px);
    font-weight: 600; letter-spacing: -0.03em;
    line-height: 1.2; margin-bottom: 16px;
}
.detail-hero p {
    color: var(--text-secondary);
    font-size: clamp(15px, 1.2vw, 18px);
    max-width: 560px; margin: 0 auto; line-height: 1.7;
}

.detail-section { padding: clamp(60px, 8vw, 100px) var(--side-pad); }
.detail-inner { margin: 0 auto; max-width: var(--max-w); }

.detail-feature-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.detail-feature-card {
    background: var(--bg-white); border-radius: var(--radius);
    border: 1px solid var(--border-light); padding: 28px;
    transition: all 0.4s var(--ease-out);
}
.detail-feature-card:hover {
    border-color: rgba(0,102,255,0.3);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.detail-feature-card .df-icon {
    width: 44px; height: 44px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; margin-bottom: 16px;
    background: linear-gradient(135deg, rgba(0,102,255,0.08), rgba(0,212,170,0.08));
}
.detail-feature-card h4 {
    font-size: 1.05rem; font-weight: 600; margin-bottom: 8px;
}
.detail-feature-card p {
    font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7;
}

.detail-image-banner {
    width: 100%; border-radius: var(--radius); overflow: hidden;
    margin: 40px 0; position: relative;
}
.detail-image-banner img {
    width: 100%; height: auto; display: block;
    object-fit: cover;
}

@media (max-width: 768px) {
    .float-widget { right: 12px; bottom: 80px; }
    .float-widget-btn { width: 44px; height: 44px; }
    .wechat-popup { right: 64px; bottom: 130px; }
    .wechat-popup img { width: 120px; height: 120px; }
    .chat-popup { right: 12px; left: 12px; bottom: 130px; width: auto; }
    .nav-dropdown-menu { left: 0; transform: translateX(0) translateY(8px); }
    .nav-dropdown:hover .nav-dropdown-menu { transform: translateX(0) translateY(0); }
    .nav-dropdown-submenu { left: 0; top: 100%; }
}