/* 路路通 PC 落地页 — 深紫商务沉稳 */

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #0a0520;
    color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

html { font-size: calc(100vw / 120); }
@media (max-width: 1280px) { html { font-size: 10.67px; } }
@media (min-width: 1921px) { html { font-size: 16px; } }
@media (min-width: 2560px) { html { font-size: 21.33px; } }

body { font-size: 14px; line-height: 1.6; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ============ 全局背景与光斑 ============ */
.page {
    position: relative;
    background: linear-gradient(180deg, #0f0828 0%, #1f1450 50%, #0a0520 100%);
    overflow: clip;
}

.bg-glow {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(40px);
}
.bg-glow-1 { top: -10rem; right: -8rem; width: 40rem; height: 40rem; background: radial-gradient(circle, rgba(167,139,250,0.35), transparent 70%); }
.bg-glow-2 { top: 40rem; left: -10rem; width: 50rem; height: 50rem; background: radial-gradient(circle, rgba(124,91,217,0.22), transparent 70%); }
.bg-glow-3 { bottom: -15rem; right: 10rem; width: 45rem; height: 45rem; background: radial-gradient(circle, rgba(91,63,217,0.2), transparent 70%); }

/* 渐变高光文字 */
.grad-text {
    background: linear-gradient(135deg, #d4c4ff, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* ============ 顶栏 ============ */
.topbar {
    position: relative;
    z-index: 10;
    max-width: 120rem;
    margin: 0 auto;
    padding: 1.5rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.topbar .brand { display: flex; align-items: center; gap: 0.6rem; }
.topbar .brand img { width: 2rem; height: 2rem; border-radius: 0.55rem; }
.topbar .brand span { font-size: 1.15rem; font-weight: 600; letter-spacing: 0.05em; }

.nav-links { display: flex; gap: 2.5rem; font-size: 0.9rem; color: #c4b5fd; }
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: #fff; }

.nav-action {
    background: #fff;
    color: #1f1450;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 0.55rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}
.nav-action:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(255, 255, 255, 0.15); }

/* ============ Hero ============ */
.hero {
    position: relative;
    z-index: 2;
    max-width: 120rem;
    margin: 0 auto;
    padding: 4rem 4rem 6rem;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-copy .eyebrow {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border: 1px solid rgba(167, 139, 250, 0.4);
    border-radius: 99px;
    font-size: 0.75rem;
    color: #c4b5fd;
    letter-spacing: 0.2em;
    margin-bottom: 1.6rem;
}

.hero-copy h1 {
    font-size: 3.4rem;
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: -0.02em;
    margin: 0 0 1.3rem;
}

.hero-lead {
    font-size: 1rem;
    line-height: 1.75;
    color: #c4b5fd;
    margin: 0 0 2rem;
    max-width: 30rem;
}

.hero-actions { display: flex; gap: 1rem; margin-bottom: 2.6rem; }

.btn-primary {
    background: linear-gradient(135deg, #a78bfa, #7c5bd9);
    color: #fff;
    border: none;
    padding: 0.85rem 1.9rem;
    border-radius: 0.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(124, 91, 217, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(124, 91, 217, 0.55); }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 0.85rem 1.6rem;
    border-radius: 0.6rem;
    font-size: 0.95rem;
    transition: background 0.2s, border-color 0.2s;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.4); }

.proof-row {
    display: flex;
    gap: 2.5rem;
    margin: 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.proof-row > div { display: flex; flex-direction: column; gap: 0.25rem; }
.proof-row dt { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.01em; }
.proof-row dd { margin: 0; font-size: 0.75rem; color: #8b7ed4; }

/* Hero 右侧主视觉 */
.hero-visual {
    position: relative;
    height: 28rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ring { position: absolute; border-radius: 50%; border: 1px solid rgba(167, 139, 250, 0.25); }
.ring-1 { width: 24rem; height: 24rem; animation: ringspin 60s linear infinite; }
.ring-2 { width: 18rem; height: 18rem; border-color: rgba(167, 139, 250, 0.35); animation: ringspin 45s linear infinite reverse; }
.ring-3 { width: 12rem; height: 12rem; border-color: rgba(167, 139, 250, 0.5); animation: ringspin 30s linear infinite; }
@keyframes ringspin { to { transform: rotate(360deg); } }

.hero-logo {
    position: relative;
    z-index: 3;
    width: 9rem;
    height: 9rem;
    border-radius: 2.2rem;
    background: linear-gradient(135deg, #a78bfa, #5b3fd9);
    box-shadow: 0 0 60px rgba(167, 139, 250, 0.55), 0 20px 50px rgba(91, 63, 217, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-logo img { width: 100%; height: 100%; border-radius: inherit; }

.orbit-dot { position: absolute; border-radius: 50%; background: #c4b5fd; box-shadow: 0 0 12px #a78bfa; }
.dot-1 { top: 2rem; right: 5rem; width: 0.55rem; height: 0.55rem; }
.dot-2 { bottom: 4rem; left: 3rem; width: 0.4rem; height: 0.4rem; background: #a78bfa; }
.dot-3 { top: 8rem; left: 1.5rem; width: 0.35rem; height: 0.35rem; background: #d4c4ff; }

/* ============ 区块标题 ============ */
.section-heading { text-align: center; margin-bottom: 3.5rem; position: relative; z-index: 2; }
.section-heading .eyebrow { font-size: 0.75rem; color: #a78bfa; letter-spacing: 0.3em; margin-bottom: 0.9rem; }
.section-heading h2 { font-size: 2.5rem; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 0.85rem; }
.section-heading .section-sub { font-size: 0.95rem; color: #8b7ed4; margin: 0; }

/* ============ 安全能力 ============ */
.capability {
    position: relative;
    z-index: 2;
    max-width: 120rem;
    margin: 0 auto;
    padding: 5rem 4rem;
}
.capability-glow {
    position: absolute;
    top: -10rem;
    left: 50%;
    transform: translateX(-50%);
    width: 45rem;
    height: 25rem;
    border-radius: 50%;
    background: radial-gradient(ellipse, rgba(124,91,217,0.22), transparent 70%);
    pointer-events: none;
}
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; position: relative; z-index: 2; }
.cap-card {
    background: linear-gradient(160deg, rgba(124, 91, 217, 0.12), rgba(124, 91, 217, 0.03));
    border: 1px solid rgba(167, 139, 250, 0.18);
    border-radius: 1.1rem;
    padding: 2.2rem 1.9rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.cap-card:hover { transform: translateY(-4px); border-color: rgba(167, 139, 250, 0.4); box-shadow: 0 18px 40px rgba(91, 63, 217, 0.25); }
.cap-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.85rem;
    background: linear-gradient(135deg, #a78bfa, #7c5bd9);
    box-shadow: 0 8px 20px rgba(124, 91, 217, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: #fff;
}
.cap-icon svg { width: 1.4rem; height: 1.4rem; }
.cap-card h3 { font-size: 1.3rem; font-weight: 600; margin: 0 0 0.65rem; }
.cap-card p { font-size: 0.9rem; color: #a89cd9; line-height: 1.75; margin: 0; }

/* ============ 平台下载 ============ */
.download { position: relative; z-index: 2; max-width: 120rem; margin: 0 auto; padding: 5rem 4rem; }
.download-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.dl-card {
    background: linear-gradient(160deg, rgba(124, 91, 217, 0.14), rgba(124, 91, 217, 0.04));
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-radius: 1.1rem;
    padding: 2rem 1.6rem;
    color: #fff;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.dl-card:not(.qr-card) { cursor: pointer; }
.dl-card:not(.qr-card):hover { transform: translateY(-4px); border-color: rgba(167, 139, 250, 0.45); box-shadow: 0 18px 40px rgba(91, 63, 217, 0.25); }
.dl-icon {
    width: 3.4rem;
    height: 3.4rem;
    border-radius: 0.95rem;
    background: linear-gradient(135deg, #a78bfa, #7c5bd9);
    box-shadow: 0 8px 20px rgba(124, 91, 217, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    color: #fff;
}
.dl-icon svg { width: 1.6rem; height: 1.6rem; }
.dl-card strong { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.3rem; }
.dl-card span { font-size: 0.75rem; color: #8b7ed4; margin-bottom: 1.2rem; }
.dl-card em {
    display: block;
    background: #fff;
    color: #1f1450;
    border-radius: 0.5rem;
    padding: 0.6rem 0;
    width: 100%;
    font-size: 0.85rem;
    font-weight: 600;
    font-style: normal;
    margin-top: auto;
}

.qr-card { padding-top: 2rem; }
.qr-box {
    width: 7.5rem;
    height: 7.5rem;
    background: #fff;
    border-radius: 0.7rem;
    padding: 0.45rem;
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qr-box img, .qr-box canvas { width: 100% !important; height: 100% !important; display: block; }

/* ============ 页脚 ============ */
.footer {
    position: relative;
    z-index: 2;
    max-width: 120rem;
    margin: 0 auto;
    padding: 2rem 4rem 2.4rem;
    border-top: 1px solid rgba(167, 139, 250, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-left { display: flex; align-items: center; gap: 0.6rem; }
.footer-left img { width: 1.75rem; height: 1.75rem; border-radius: 0.5rem; }
.footer-brand { font-size: 0.9rem; font-weight: 600; }
.footer-copy { font-size: 0.7rem; color: #6b5fa8; margin-left: 0.9rem; }
.footer-links { display: flex; gap: 1.5rem; font-size: 0.75rem; color: #8b7ed4; }
.footer-links a:hover { color: #fff; }