:root {
    --sunrise: #ff8a3d;
    --sun: #ffc14a;
    --sky: #fff4e8;
    --deep: #7a2e12;
    --ink: #3a2418;
    --muted: #7a5a48;
    --line: #efd3bc;
    --card: #fffaf4;
    --navy: #2c3e50;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    background: var(--sky);
    color: var(--ink);
    line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 20px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--sunrise), #ffb14a);
    color: #4a1f0c;
    font-weight: 700;
}
.btn:hover { filter: brightness(1.05); }
.btn-ghost { background: transparent; border: 1px solid var(--sunrise); color: var(--deep); }
.btn-lg { padding: 14px 26px; font-size: 16px; }

.route-bar {
    background: linear-gradient(90deg, #ffb14a, #ff8a3d 55%, #e45a2b);
    color: #fff;
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    padding: 7px 10px;
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 250, 244, 0.94);
    border-bottom: 1px solid var(--line);
}
.nav-wrap {
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}
.logo { display: flex; align-items: center; gap: 8px; font-weight: 800; color: var(--deep); }
.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sun), var(--sunrise));
    display: grid;
    place-items: center;
    color: #fff;
}
.nav-menu { display: flex; gap: 16px; flex-wrap: wrap; }
.nav-menu a { font-size: 14px; color: var(--muted); font-weight: 600; }
.nav-menu a:hover, .nav-menu a.active { color: var(--sunrise); }
.nav-actions { display: flex; gap: 8px; }
.nav-toggle { display: none; }
.nav-burger {
    display: none;
    border: 1px solid var(--line);
    padding: 7px 10px;
    color: var(--deep);
    border-radius: 999px;
}

.hero {
    padding: 54px 0 38px;
    background:
        radial-gradient(circle at 80% 10%, rgba(255, 193, 74, 0.45), transparent 28%),
        linear-gradient(180deg, #ffe7c8 0%, var(--sky) 70%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.chip {
    display: inline-block;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
    color: var(--deep);
    margin-bottom: 12px;
}
.hero h1 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.2; margin-bottom: 12px; }
.hero-kicker { color: var(--sunrise); font-weight: 800; margin-bottom: 8px; }
.hero p { color: var(--muted); margin-bottom: 18px; }
.route-card { background: #fff; border-radius: 18px; padding: 18px; box-shadow: 0 10px 30px rgba(228, 90, 43, 0.12); }
.meta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 10px; font-size: 13px; color: var(--muted); }
.hero-visual img { width: 100%; border-radius: 20px; box-shadow: 0 16px 36px rgba(122, 46, 18, 0.12); }

.data-band { background: #fff; padding: 26px 0; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; text-align: center; }
.data-num { font-size: 30px; font-weight: 800; color: var(--sunrise); }
.data-label { font-size: 13px; color: var(--muted); }

.section { padding: 70px 0; }
.section.alt { background: #fff7ee; }
.section-head { text-align: center; margin-bottom: 30px; }
.section-head h2 { font-size: 28px; margin-bottom: 8px; }
.section-head p { color: var(--muted); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.card h3 { margin: 8px 0; }
.card p { color: var(--muted); font-size: 14px; }
.icon { font-size: 22px; }
.solution-card { padding: 0; overflow: hidden; }
.solution-card img { height: 172px; width: 100%; object-fit: cover; }
.solution-card div { padding: 16px; }
.price { font-size: 24px; color: var(--sunrise); font-weight: 800; margin: 6px 0 8px; }
.card.main { border-color: var(--sunrise); }

.cta {
    padding: 64px 0;
    text-align: center;
    background: linear-gradient(135deg, #ff8a3d, #e45a2b);
    color: #fff;
}
.cta h2 { font-size: 30px; margin-bottom: 8px; }
.cta p { opacity: .92; margin-bottom: 18px; }
.cta .btn { background: #fff; color: var(--deep); }
.cta .btn-ghost { background: transparent; border-color: #fff; color: #fff; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: #3a2418; color: #e8d3c4; padding: 42px 0 16px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 18px; margin-bottom: 16px; }
.footer-grid h4 { color: #ffc14a; margin-bottom: 8px; }
.footer-grid a, .footer-grid p { display: block; margin-bottom: 8px; font-size: 14px; color: #e8d3c4; }
.logo-light { color: #fff; }
.footer-bottom { border-top: 1px solid #5a3a2a; padding-top: 12px; text-align: center; font-size: 12px; }

.page-hero { padding: 40px 0 8px; text-align: center; }
.page-hero h1 { font-size: 32px; margin-bottom: 8px; }
.page-hero p { color: var(--muted); }

.dl-list { display: grid; gap: 14px; }
.dl-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 20px;
}
.dl-item.main { border-color: var(--sunrise); }
.specs { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; font-size: 12px; color: var(--muted); }
.specs span { background: #fff4e8; border-radius: 999px; padding: 2px 8px; }
.shot { max-width: 860px; margin: 26px auto 0; }
.shot img { border-radius: 16px; }

.help-list { display: grid; gap: 14px; max-width: 860px; margin: 0 auto; }
.help-box { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.help-box h3 { color: var(--deep); margin-bottom: 8px; }
.help-box p { color: var(--muted); margin-bottom: 8px; }

@media (max-width: 992px) {
    .nav-burger { display: inline-block; }
    .nav-toggle:checked + .nav-burger + .nav-menu { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        left: 16px;
        right: 16px;
        top: 116px;
        background: #fffaf4;
        border: 1px solid var(--line);
        border-radius: 12px;
        padding: 12px;
        flex-direction: column;
    }
    .hero-grid, .grid-3, .footer-grid { grid-template-columns: 1fr; }
    .data-grid { grid-template-columns: 1fr 1fr; }
    .dl-item { flex-direction: column; text-align: center; }
    .nav-actions .btn-ghost { display: none; }
}