/* ===== 子页面专用样式（产品详情 / 新闻 / 行业方案） ===== */

/* ===== 面包屑 ===== */
.crumb {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    font-size: 14px;
}
.crumb a { color: var(--text-muted); }
.crumb a:hover { color: var(--brand); }
.crumb i { color: #c3cbd6; font-style: normal; margin: 0 8px; }
.crumb span { color: var(--text-dark); font-weight: 600; }

/* ===== 产品头图 ===== */
.p-hero {
    background: linear-gradient(135deg, #04306b 0%, #0a4ba8 50%, #0070f0 100%);
    color: #fff;
    padding: 56px 0 64px;
    position: relative;
    overflow: hidden;
}
.p-hero::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 85% 20%, rgba(255,131,17,.18), transparent 45%);
}
.p-hero-inner {
    position: relative; z-index: 1;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
}
.p-hero-logo {
    width: 88px; height: 88px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--orange), var(--orange-2));
    display: grid; place-items: center;
    font-size: 20px; font-weight: 800;
    margin-bottom: 22px;
    box-shadow: 0 10px 26px rgba(255,131,17,.34);
    letter-spacing: -.5px;
}
.p-hero h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; margin-bottom: 8px; letter-spacing: -.5px; }
.p-hero-sub { font-size: 18px; color: #ffd8a8; font-weight: 600; margin-bottom: 16px; }
.p-hero-desc { font-size: 15px; color: #cfe0f5; line-height: 1.85; margin-bottom: 22px; max-width: 620px; }

.p-tags-lg { margin-bottom: 26px; }
.p-tags-lg span {
    background: rgba(255,255,255,.16);
    color: #fff;
    font-size: 13px;
    padding: 5px 14px;
}
.p-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.p-hero-cta .btn-outline { border-color: rgba(255,255,255,.6); color: #fff; }
.p-hero-cta .btn-outline:hover { background: #fff; color: var(--brand); border-color: #fff; }

.p-hero-meta {
    background: rgba(255,255,255,.10);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 14px;
    padding: 26px 24px;
    backdrop-filter: blur(6px);
}
.pm-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px dashed rgba(255,255,255,.18);
}
.pm-item:last-child { border-bottom: none; }
.pm-item span { font-size: 14px; color: #b9d3f2; }
.pm-item strong { font-size: 15px; color: #fff; font-weight: 700; text-align: right; }

/* ===== 核心功能列表 ===== */
.feat-list {
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
}
.feat-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    padding: 22px 28px;
    border-bottom: 1px solid var(--border);
    transition: background .25s ease;
}
.feat-row:last-child { border-bottom: none; }
.feat-row:hover { background: var(--bg-alt); }
.feat-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}
.feat-name::before {
    content: '';
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--brand);
    flex-shrink: 0;
}
.feat-desc { font-size: 15px; color: var(--text-muted); line-height: 1.75; }

/* ===== 适用场景 ===== */
.scene-box {
    max-width: 760px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 44px 36px;
    text-align: center;
}
.scene-ico { font-size: 52px; margin-bottom: 18px; }
.scene-box p { font-size: 17px; color: var(--text); line-height: 1.8; margin-bottom: 26px; }

/* ===== 上下篇导航 ===== */
.p-nav { padding: 40px 0; }
.p-nav-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.p-nav-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px 26px;
    transition: all .3s ease;
}
.p-nav-item:hover {
    border-color: var(--brand);
    box-shadow: 0 10px 24px rgba(0,112,240,.12);
    transform: translateY(-2px);
}
.p-nav-next { text-align: right; }
.p-nav-item span { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.p-nav-item strong { font-size: 17px; color: var(--text-dark); font-weight: 700; }
.p-nav-item:hover strong { color: var(--brand); }

/* ===== 时间线（新闻） ===== */
.timeline { max-width: 860px; margin: 0 auto; }
.tl-item {
    display: grid;
    grid-template-columns: 110px 110px 1fr;
    gap: 20px;
    align-items: center;
    padding: 20px 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 12px;
    transition: all .25s ease;
}
.tl-item:hover {
    border-color: var(--brand);
    box-shadow: 0 8px 20px rgba(0,112,240,.10);
    transform: translateX(4px);
}
.tl-date { font-size: 13.5px; color: var(--text-muted); }
.tl-cat {
    font-size: 12.5px;
    color: var(--brand);
    background: var(--brand-light);
    padding: 4px 12px;
    border-radius: 100px;
    font-weight: 600;
    text-align: center;
}
.tl-title { font-size: 15.5px; color: var(--text-dark); font-weight: 500; line-height: 1.6; }
.tl-item:hover .tl-title { color: var(--brand); }

/* ===== 行业方案网格 ===== */
.sol-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sol-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 24px;
    text-align: center;
    transition: all .3s ease;
}
.sol-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 36px rgba(15,23,42,.10);
    border-color: var(--brand);
}
.sol-item-ico { font-size: 40px; margin-bottom: 14px; }
.sol-item h3 { font-size: 18px; color: var(--text-dark); font-weight: 700; margin-bottom: 10px; }
.sol-item p { font-size: 13.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.sol-link { font-size: 14px; color: var(--brand); font-weight: 600; }
.sol-item:hover .sol-link { color: var(--orange); }

/* ===== 查看更多按钮 ===== */
.case-more { text-align: center; margin-top: 40px; }

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
    .sol-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
    .p-hero-inner { grid-template-columns: 1fr; gap: 32px; }
    .sol-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .p-hero { padding: 40px 0 48px; }
    .p-hero-logo { width: 72px; height: 72px; font-size: 17px; }
    .p-hero-sub { font-size: 16px; }
    .p-hero-desc { font-size: 14.5px; }

    .feat-row { grid-template-columns: 1fr; gap: 8px; padding: 18px 20px; }
    .feat-desc { font-size: 14px; }

    .scene-box { padding: 32px 22px; }
    .scene-box p { font-size: 15.5px; }

    .p-nav-inner { grid-template-columns: 1fr; gap: 12px; }
    .p-nav-next { text-align: left; }

    .tl-item { grid-template-columns: 1fr; gap: 8px; padding: 16px 18px; }
    .tl-cat { justify-self: start; }

    .sol-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}

@media (max-width: 420px) {
    .sol-grid { grid-template-columns: 1fr; }
    .p-hero-cta { flex-direction: column; align-items: stretch; }
}