:root {
    --red: #d9212b;
    --red-deep: #9f1119;
    --blue: #0e4aa8;
    --blue-deep: #07306e;
    --white: #ffffff;
    --ink: #12203a;
    --muted: #5f6b85;
    --line: #d7e0ef;
    --bg: #f4f7fc;
    --panel: rgba(255, 255, 255, 0.9);
    --shadow: 0 18px 40px rgba(11, 36, 78, 0.12);
    --radius: 24px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(217, 33, 43, 0.14), transparent 28%),
        radial-gradient(circle at top right, rgba(14, 74, 168, 0.18), transparent 32%),
        linear-gradient(180deg, #ffffff 0%, #f6f8fd 55%, #eef3fb 100%);
    line-height: 1.8;
}

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

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

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.narrow {
    width: min(860px, 100%);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
    background: rgba(255, 255, 255, 0.86);
    border-bottom: 1px solid rgba(215, 224, 239, 0.85);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 0;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 1px;
}

.site-brand img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.site-brand span {
    background: linear-gradient(90deg, var(--red) 0%, var(--blue) 100%);
    -webkit-background-clip: text;
    color: transparent;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
}

.site-nav a {
    padding: 10px 16px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 15px;
    transition: all 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
    background: linear-gradient(90deg, rgba(217, 33, 43, 0.12), rgba(14, 74, 168, 0.14));
    color: var(--ink);
}

.page-shell {
    min-height: calc(100vh - 320px);
}

.hero,
.page-hero {
    padding: 74px 0 48px;
}

.hero-grid,
.split-grid,
.contact-grid,
.pricing-grid,
.footer-main {
    display: grid;
    gap: 24px;
}

.hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
}

.hero-copy h1,
.page-hero h1 {
    margin: 8px 0 18px;
    line-height: 1.15;
    font-size: clamp(34px, 5vw, 64px);
}

.page-hero h1 {
    font-size: clamp(30px, 4vw, 52px);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(215, 224, 239, 0.85);
    color: var(--blue);
    font-size: 14px;
    font-weight: 700;
}

.hero-copy p,
.page-hero p,
.section-heading p,
.long-text,
.article-card p,
.article-detail p {
    color: var(--muted);
    font-size: 17px;
}

.hero-actions,
.article-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 168px;
    padding: 13px 22px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    color: var(--white);
    background: linear-gradient(90deg, var(--red) 0%, var(--blue) 100%);
    box-shadow: 0 14px 28px rgba(14, 74, 168, 0.22);
}

.btn-secondary {
    color: var(--blue);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(14, 74, 168, 0.18);
}

.hero-points,
.check-card ul,
.price-card ul {
    margin: 24px 0 0;
    padding-left: 20px;
    color: var(--muted);
}

.hero-panel,
.scene-list {
    display: grid;
    gap: 18px;
}

.stat-card,
.feature-card,
.download-box,
.check-card,
.price-card,
.contact-card,
.article-card,
.article-detail {
    background: var(--panel);
    border: 1px solid rgba(215, 224, 239, 0.92);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.stat-card {
    padding: 24px;
}

.stat-card strong {
    display: block;
    margin-bottom: 8px;
    font-size: 24px;
}

.stat-card span {
    color: var(--muted);
}

.section {
    padding: 34px 0 28px;
}

.section-band {
    padding: 40px 0;
    background: linear-gradient(90deg, rgba(217, 33, 43, 0.04), rgba(14, 74, 168, 0.07));
    border-top: 1px solid rgba(215, 224, 239, 0.8);
    border-bottom: 1px solid rgba(215, 224, 239, 0.8);
}

.section-heading {
    text-align: center;
    margin-bottom: 28px;
}

.section-heading.left {
    text-align: left;
}

.section-heading span {
    color: var(--red);
    font-weight: 700;
    letter-spacing: 1px;
}

.section-heading h2 {
    margin: 10px 0 10px;
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.2;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.feature-card,
.contact-card {
    padding: 24px;
}

.split-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
}

.scene-list > div,
.download-box,
.check-card {
    padding: 26px;
}

.download-box.strong,
.price-card.featured {
    background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(237,244,255,0.96));
}

.download-box h3,
.download-box h2,
.price-card h2,
.contact-card h2 {
    margin-top: 0;
    font-size: 30px;
}

.pricing-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
}

.price-card {
    padding: 30px;
}

.price-tag {
    display: inline-block;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(14, 74, 168, 0.08);
    color: var(--blue);
    font-size: 13px;
    font-weight: 700;
}

.price-value {
    margin: 16px 0;
    font-size: 48px;
    font-weight: 800;
    color: var(--red);
}

.price-value span {
    font-size: 18px;
    color: var(--muted);
}

.article-list {
    display: grid;
    gap: 20px;
}

.article-card {
    padding: 28px;
}

.article-card h2,
.article-card h3 {
    margin: 12px 0 10px;
    font-size: 30px;
    line-height: 1.35;
}

.article-card a:hover,
.text-link {
    color: var(--blue);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--muted);
    font-size: 14px;
}

.article-meta--single {
    margin-top: 18px;
}

.article-detail {
    padding: 36px;
}

.article-detail p + p {
    margin-top: 18px;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 28px;
}

.pagination a {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(215, 224, 239, 0.92);
}

.pagination a.active {
    background: linear-gradient(90deg, var(--red) 0%, var(--blue) 100%);
    color: var(--white);
}

.site-footer {
    margin-top: 44px;
    padding: 42px 0 24px;
    background: linear-gradient(180deg, #0d1f44 0%, #09152e 100%);
    color: rgba(255, 255, 255, 0.82);
}

.footer-main {
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    margin-bottom: 26px;
}

.footer-main h3 {
    margin-top: 0;
    color: var(--white);
}

.footer-main a {
    display: block;
    margin-top: 10px;
}

.footer-links {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.66);
}

.footer-links__items {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    min-height: 24px;
}

.footer-copy {
    padding-top: 18px;
    color: rgba(255,255,255,0.55);
}

.floating-telegram {
    position: fixed;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: 999px;
    color: var(--white);
    background: linear-gradient(180deg, var(--blue) 0%, var(--red) 100%);
    box-shadow: 0 18px 34px rgba(11, 32, 72, 0.28);
}

.floating-telegram__badge {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.15);
    font-weight: 800;
}

.text-link {
    font-weight: 700;
}

@media (max-width: 1024px) {
    .hero-grid,
    .split-grid,
    .pricing-grid,
    .footer-main,
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-nav {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .hero,
    .page-hero {
        padding-top: 54px;
    }

    .site-brand {
        font-size: 24px;
    }

    .site-brand img {
        width: 44px;
        height: 44px;
    }

    .article-card h2,
    .article-card h3,
    .download-box h3,
    .download-box h2,
    .price-card h2,
    .contact-card h2 {
        font-size: 24px;
    }

    .floating-telegram {
        right: 8px;
        padding: 10px 12px;
    }

    .floating-telegram__label {
        display: none;
    }
}