/* ========================================
   深度数卡 DeepCard - 华为云 Inspire 精确复刻
   ======================================== */

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

/* ---------- Font ---------- */
@font-face {
    font-family: 'HarmonyOS_Sans_SC_Bold';
    src: url(//res-static.hc-cdn.cn/cloudbu-site/china/zh-cn/font/HarmonyOS_Sans_SC_Bold.woff2) format('woff2');
    font-display: swap;
}
@font-face {
    font-family: 'HarmonyOS_Sans_SC_Medium';
    src: url(//res-static.hc-cdn.cn/cloudbu-site/china/zh-cn/font/HarmonyOS_Sans_SC_Medium.woff2) format('woff2');
    font-display: swap;
}
@font-face {
    font-family: 'HarmonyOS_Sans_SC_Regular';
    src: url(//res-static.hc-cdn.cn/cloudbu-site/china/zh-cn/font/HarmonyOS_Sans_SC_Regular.woff2) format('woff2');
    font-display: swap;
}

:root {
    --font: 'HarmonyOS_Sans_SC_Regular', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-bold: 'HarmonyOS_Sans_SC_Bold', 'PingFang SC', sans-serif;
    --font-medium: 'HarmonyOS_Sans_SC_Medium', 'PingFang SC', sans-serif;
    --bg-white: #fff;
    --bg-light: #f7f8fa;
    --text-dark: #1d1d1f;
    --text-gray: #8a8d93;
    --text-mid: rgba(0,0,0,0.5);
    --border: #e6e8eb;
    --blue: #0072ff;
    --blue-hover: #4096ff;
    --radius: 24px;
    --radius-sm: 12px;
}

body {
    font-family: var(--font);
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    padding-top: 72px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
}

/* =========== NAV =========== */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #f0f1f3;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-dark);
}

.nav-logo-icon {
    width: 30px;
    height: 30px;
    background: var(--text-dark);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    font-family: var(--font-bold);
}

.nav-logo-text {
    font-family: var(--font-medium);
    font-size: 16px;
    letter-spacing: 0.3px;
}

.nav-logo-img {
    height: 36px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 2px;
    list-style: none;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
    padding: 6px 14px;
    font-size: 13px;
    color: var(--text-gray);
    text-decoration: none;
    border-radius: 8px;
    white-space: nowrap;
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--text-dark);
    background: var(--bg-light);
}

.nav-links a.active {
    color: var(--text-dark);
    font-family: var(--font-medium);
}

/* =========== HERO BANNER =========== */
.banner {
    background: linear-gradient(180deg, #f2f4f8 0%, #e4e7ed 50%, #d0d5dd 100%);
    min-height: calc(100vh - 72px);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.banner-inner {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: 80px 0;
}

.banner-text {
    flex: 1;
    max-width: 620px;
}

.banner-label {
    font-family: var(--font-medium);
    font-size: 18px;
    color: var(--text-gray);
    letter-spacing: 0.5px;
    margin-bottom: 24px;
}

.banner-title {
    font-family: var(--font-bold);
    font-size: 68px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1px;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.banner-desc {
    font-size: 18px;
    color: var(--text-mid);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 500px;
}

.banner-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
}

.btn-primary.btn-dark {
    background: var(--text-dark);
    color: #fff;
    height: 48px;
    padding: 0 32px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-medium);
    font-size: 15px;
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.3s;
}
.btn-primary.btn-dark:hover { background: #000; transform: translateY(-1px); }

.btn-ghost.btn-dark-ghost {
    height: 48px;
    padding: 0 32px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-medium);
    font-size: 15px;
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.3s;
    color: var(--text-dark);
    border: 1px solid var(--border);
}
.btn-ghost.btn-dark-ghost:hover { border-color: #c0c2c6; }

.banner-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.banner-tags span {
    padding: 6px 16px;
    background: rgba(255,255,255,0.7);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-gray);
}

.banner-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    height: 48px;
    padding: 0 32px;
    background: var(--text-dark);
    color: #fff;
    font-family: var(--font-medium);
    font-size: 16px;
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.3s;
}

.banner-cta:hover {
    background: #000;
    transform: translateY(-1px);
}

.banner-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Brand Globe */
.brand-globe {
    width: 440px;
    height: 440px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), transparent 70%),
                radial-gradient(circle at 70% 70%, rgba(0,114,255,0.03), transparent 50%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.brand-globe-inner {
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #E4002B, #DA291C, #1E3A5F, #00704A, #006491, #7A003C, #1E3050, #7B2D26, #BFA580, #D62300, #E87D00, #C8102E, #E4002B);
    opacity: 0.15;
    position: absolute;
    animation: spin 20s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.brand-orbits {
    position: absolute;
    width: 100%;
    height: 100%;
}

.orbit-item {
    position: absolute;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-family: var(--font-medium);
    color: var(--text-dark);
    transition: all 0.3s;
}

.orbit-item:hover {
    transform: scale(1.15);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.orbit-item:nth-child(1) { top: 10%; left: 50%; margin-left: -28px; }
.orbit-item:nth-child(2) { top: 50%; right: 5%; margin-top: -28px; }
.orbit-item:nth-child(3) { bottom: 15%; left: 30%; margin-left: -28px; }
.orbit-item:nth-child(4) { top: 55%; left: 5%; margin-top: -28px; }
.orbit-item:nth-child(5) { bottom: 30%; right: 15%; margin-left: -28px; }

/* =========== SECTIONS =========== */
.section {
    padding: 120px 0;
}

.section-light {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
}

.section-label {
    font-family: var(--font-medium);
    font-size: 14px;
    color: var(--text-gray);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-bold);
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.15;
}

.section-sub {
    font-size: 16px;
    color: var(--text-mid);
    max-width: 560px;
    margin: 0 auto;
}

/* Brand Grid */
.brand-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.brand-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px 20px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    border: 1px solid #f0f1f3;
}

.brand-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.06);
    border-color: #e0e2e6;
}

.brand-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
}

.brand-name {
    font-family: var(--font-medium);
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.brand-desc {
    font-size: 13px;
    color: var(--text-gray);
}

.brand-card:hover .brand-name { color: #000; }

/* Brand color icons */
.brand-ico-kfc { background: linear-gradient(135deg, #E4002B, #ff4d4d); }
.brand-ico-mcd { background: linear-gradient(135deg, #DA291C, #ff6347); }
.brand-ico-luckin { background: linear-gradient(135deg, #1E3A5F, #346a9e); }
.brand-ico-sb { background: linear-gradient(135deg, #00704A, #00a86b); }
.brand-ico-pizza { background: linear-gradient(135deg, #006491, #0099cc); }
.brand-ico-bw { background: linear-gradient(135deg, #7A003C, #c7005c); }
.brand-ico-cotti { background: linear-gradient(135deg, #1E3050, #305080); }
.brand-ico-nayuki { background: linear-gradient(135deg, #7B2D26, #b54339); }
.brand-ico-molly { background: linear-gradient(135deg, #BFA580, #d4c4a8); }
.brand-ico-bk { background: linear-gradient(135deg, #D62300, #ff4500); }
.brand-ico-dicos { background: linear-gradient(135deg, #E87D00, #ffa500); }
.brand-ico-tastin { background: linear-gradient(135deg, #C8102E, #e03050); }

.brand-icon span {
    color: #fff;
    font-size: 22px;
}

/* =========== FEATURES =========== */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: #fff;
    border-radius: 16px;
    padding: 48px 40px;
    border: 1px solid #f0f1f3;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.04);
    border-color: #e0e2e6;
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: #f2f4f8;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 24px;
}

.feature-title {
    font-family: var(--font-medium);
    font-size: 20px;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* =========== SPLIT LAYOUT =========== */
.split-row {
    display: flex;
    gap: 48px;
    align-items: flex-start;
}

.split-col {
    flex: 1;
}

.split-col:first-child {
    flex: 1.2;
}

.agenda-card {
    background: #fff;
    border-radius: 16px;
    padding: 48px 40px;
    border: 1px solid #f0f1f3;
}

.agenda-title {
    font-family: var(--font-medium);
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.agenda-desc {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-dark);
}

.agenda-list {
    list-style: none;
}

.agenda-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid var(--bg-light);
    font-size: 14px;
    color: var(--text-dark);
}

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

.agenda-list .num {
    font-family: var(--font-bold);
    font-size: 18px;
    color: var(--text-gray);
    min-width: 32px;
}

/* =========== CTA =========== */
.cta-section {
    background: var(--text-dark);
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.cta-section .section-title { color: #fff; }
.cta-section .section-sub { color: rgba(255,255,255,0.6); }

.cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 40px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 48px;
    padding: 0 32px;
    background: #fff;
    color: var(--text-dark);
    font-family: var(--font-medium);
    font-size: 15px;
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-1px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 48px;
    padding: 0 32px;
    background: transparent;
    color: rgba(255,255,255,0.8);
    font-family: var(--font-medium);
    font-size: 15px;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.2);
    text-decoration: none;
    transition: all 0.3s;
}

.btn-ghost:hover {
    border-color: rgba(255,255,255,0.5);
    color: #fff;
}

/* =========== FOOTER =========== */
.footer {
    background: var(--text-dark);
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
    text-align: center;
}

.footer p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 8px;
}

.footer a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    transition: color 0.2s;
}

.footer a:hover { color: #fff; }

/* =========== RESPONSIVE =========== */
@media (max-width: 1024px) {
    .banner-inner { flex-direction: column; text-align: center; }
    .banner-text { max-width: 100%; }
    .banner-desc { margin: 0 auto 48px; }
    .banner-cta { margin: 0 auto; }
    .brand-globe { width: 320px; height: 320px; margin-top: 40px; }
    .brand-globe-inner { width: 280px; height: 280px; }
    .brand-grid { grid-template-columns: repeat(3, 1fr); }
    .features { grid-template-columns: repeat(2, 1fr); }
    .split-row { flex-direction: column; gap: 32px; }
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
    .banner-title { font-size: 40px; }
    .section { padding: 80px 0; }
    .section-title { font-size: 32px; }
    .brand-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .features { grid-template-columns: 1fr; gap: 20px; }
}