/* ============================================================================
 * 门户首页（home.pug）专用样式 · 2026 双主题
 * ----------------------------------------------------------------------------
 * 依赖 design-2026.css 的令牌：极光 / 米白自动适配。
 * 3D 演示舞台固定使用深色底（3D 场景需要对比度），这是刻意的局部深色。
 * ==========================================================================*/

.home-page {
    position: relative;
    z-index: 2;
    overflow-x: clip;
}

/* ── 1. Hero ───────────────────────────────────────────────────────────── */
.hp-hero {
    position: relative;
    padding: 76px 28px 84px;
    text-align: center;
}
.hp-hero::before {
    content: "";
    position: absolute;
    inset: -120px -10% auto -10%;
    height: 620px;
    background:
        radial-gradient(680px 380px at 22% 12%, color-mix(in srgb, var(--primary) 22%, transparent), transparent 66%),
        radial-gradient(620px 360px at 78% 6%, color-mix(in srgb, var(--primary-2) 20%, transparent), transparent 66%),
        radial-gradient(520px 300px at 50% 92%, color-mix(in srgb, var(--ok) 14%, transparent), transparent 70%);
    filter: blur(6px);
    z-index: -1;
    pointer-events: none;
}
:root[data-theme="ivory"] .hp-hero::before {
    background:
        radial-gradient(680px 380px at 22% 12%, rgba(31, 94, 79, .10), transparent 66%),
        radial-gradient(620px 360px at 78% 6%, rgba(178, 58, 46, .08), transparent 66%),
        radial-gradient(520px 300px at 50% 92%, rgba(176, 138, 62, .10), transparent 70%);
    filter: none;
}

.hp-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 30px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-weak);
    border: 1px solid color-mix(in srgb, var(--primary) 24%, transparent);
}
:root[data-theme="ivory"] .hp-eyebrow { border-radius: 2px; letter-spacing: .2em; color: var(--primary-2); }

.hp-title {
    margin: 22px auto 0;
    max-width: 900px;
    font-family: var(--font-display);
    font-size: clamp(34px, 4.6vw, 58px);
    font-weight: 800;
    letter-spacing: -.035em;
    line-height: 1.1;
    color: var(--ink);
}
:root[data-theme="ivory"] .hp-title { font-weight: 700; letter-spacing: -.02em; }

.hp-tagline {
    margin: 18px auto 0;
    max-width: 760px;
    font-size: clamp(15px, 1.5vw, 19px);
    font-weight: 600;
    color: var(--ink-2);
    letter-spacing: .01em;
}
.hp-subtitle {
    margin: 10px auto 0;
    max-width: 720px;
    font-size: 13.5px;
    color: var(--ink-3);
}

.hp-cta {
    margin-top: 30px;
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.hp-cta .btn { height: 44px; padding: 0 22px; font-size: 14px; border-radius: 12px; }
.hp-cta .btn svg { width: 16px; height: 16px; }

.hp-trust {
    margin: 34px auto 0;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}
.hp-trust span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 30px;
    padding: 0 13px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-2);
    background: var(--surface);
    border: var(--card-border);
    box-shadow: var(--shadow-1);
}
:root[data-theme="ivory"] .hp-trust span { border-radius: 2px; box-shadow: none; }
.hp-trust svg { width: 14px; height: 14px; stroke: var(--ok); fill: none; stroke-width: 2; }

/* ── 2. 3D 演示区 ───────────────────────────────────────────────────────── */
.hp-demo {
    display: grid;
    grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
    gap: 22px;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px 76px;
    align-items: stretch;
}

.hp-steps {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.hp-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
    text-align: left;
    padding: 14px 16px;
    border-radius: var(--r-md);
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--ink-2);
    cursor: pointer;
    transition: border-color .18s, box-shadow .18s, transform .18s, background .18s;
}
.hp-step:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--line)); transform: translateY(-1px); }
.hp-step.on {
    border-color: color-mix(in srgb, var(--primary) 55%, var(--line));
    box-shadow: var(--shadow-2);
    background: var(--surface-solid);
}
:root[data-theme="ivory"] .hp-step { border-radius: 2px; }
:root[data-theme="ivory"] .hp-step.on { box-shadow: none; border-left: 3px solid var(--primary-2); }
.hp-step-no {
    flex: 0 0 auto;
    width: 26px;
    height: 26px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    font-size: 12px;
    font-weight: 800;
    color: var(--primary);
    background: var(--primary-weak);
}
:root[data-theme="ivory"] .hp-step-no { border-radius: 50%; background: transparent; border: 1px solid var(--line-2); color: var(--ink-2); }
.hp-step.on .hp-step-no { background: var(--primary); color: #fff; }
.hp-step b { display: block; font-size: 13.5px; font-weight: 700; color: var(--ink); }
.hp-step small { display: block; margin-top: 4px; font-size: 12px; line-height: 1.55; color: var(--ink-3); }

/* 3D 舞台：刻意深色 */
.hp-stage-wrap {
    position: relative;
    min-height: 420px;
    border-radius: var(--r-xl);
    overflow: hidden;
    background:
        radial-gradient(90% 80% at 50% 0%, color-mix(in srgb, var(--primary) 10%, transparent), transparent 70%),
        radial-gradient(70% 60% at 90% 100%, color-mix(in srgb, var(--ok) 8%, transparent), transparent 70%),
        var(--surface);
    border: var(--card-border);
    box-shadow: var(--shadow-2);
}
:root[data-theme="ivory"] .hp-stage-wrap {
    background:
        radial-gradient(90% 80% at 50% 0%, rgba(31, 94, 79, .07), transparent 70%),
        radial-gradient(70% 60% at 90% 100%, rgba(178, 58, 46, .05), transparent 70%),
        #ffffff;
    border-radius: 2px;
    box-shadow: none;
}
.hp-stage {
    position: absolute;
    inset: 0;
    cursor: grab;
}
.hp-stage.is-dragging { cursor: grabbing; }
.hp-stage canvas {
    display: block; width: 100%; height: 100%;
    /* 边缘淡出：网格不要硬边收口 */
    -webkit-mask-image: radial-gradient(115% 100% at 50% 46%, #000 58%, transparent 100%);
    mask-image: radial-gradient(115% 100% at 50% 46%, #000 58%, transparent 100%);
}

.hp-stage-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 26px;
    padding: 0 11px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--surface-solid);
    border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--line));
    box-shadow: var(--shadow-1);
}
:root[data-theme="ivory"] .hp-stage-badge { border-radius: 2px; color: var(--primary-2); }
.hp-stage-badge i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 0 3px rgba(52, 211, 153, .25);
}
.hp-stage-hint {
    position: absolute;
    bottom: 12px;
    left: 14px;
    right: 14px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 11.5px;
    color: var(--ink-3);
    pointer-events: none;
}
.hp-stage-hint kbd {
    padding: 1px 6px;
    border-radius: 5px;
    background: rgba(148, 163, 184, .18);
    border: 1px solid rgba(148, 163, 184, .28);
    color: #e2e8f0;
    font-size: 11px;
    font-family: inherit;
}
.hp-demo-fallback[hidden] { display: none !important; }
.hp-demo-fallback {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    text-align: center;
    color: var(--ink-2);
    font-size: 13px;
    line-height: 1.8;
    background: var(--surface);
}

/* ── 3. 特性 ────────────────────────────────────────────────────────────── */
.hp-section {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px 76px;
}
.hp-section-head { text-align: center; margin-bottom: 26px; }
.hp-section-head h2 {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.4vw, 30px);
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--ink);
    margin: 0;
}
:root[data-theme="ivory"] .hp-section-head h2 { font-weight: 700; }
.hp-section-head p { margin: 10px 0 0; font-size: 13.5px; color: var(--ink-3); }

.hp-features {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}
.hp-feature {
    padding: 20px 18px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: var(--card-border);
    box-shadow: var(--shadow-1);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.hp-feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); border-color: color-mix(in srgb, var(--primary) 32%, var(--line)); }
:root[data-theme="ivory"] .hp-feature { border-radius: 2px; box-shadow: none; }
.hp-feature-ic {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: var(--primary-weak);
    color: var(--primary);
    margin-bottom: 14px;
}
:root[data-theme="ivory"] .hp-feature-ic { border-radius: 2px; background: transparent; border: 1px solid var(--line-2); color: var(--ink-2); }
.hp-feature-ic svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.hp-feature b { display: block; font-size: 14px; font-weight: 700; color: var(--ink); }
.hp-feature p { margin: 7px 0 0; font-size: 12.5px; line-height: 1.65; color: var(--ink-3); }

/* ── 4. 使用场景 ────────────────────────────────────────────────────────── */
.hp-cases {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.hp-case {
    position: relative;
    padding: 22px 20px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: var(--card-border);
    box-shadow: var(--shadow-1);
}
:root[data-theme="ivory"] .hp-case { border-radius: 2px; box-shadow: none; }
.hp-case b { display: block; font-size: 14.5px; font-weight: 700; color: var(--ink); }
.hp-case p { margin: 8px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--ink-3); }
.hp-case-ic {
    width: 34px;
    height: 34px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    margin-bottom: 14px;
    color: var(--primary);
    background: var(--primary-weak);
}
:root[data-theme="ivory"] .hp-case-ic { border-radius: 2px; background: transparent; border: 1px solid var(--line-2); color: var(--ink-2); }
.hp-case-ic svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.8; }

/* ── 5. 底部 CTA + 页脚 ────────────────────────────────────────────────── */
.hp-cta-band {
    max-width: 1240px;
    margin: 0 auto 64px;
    padding: 40px 34px;
    border-radius: var(--r-xl);
    text-align: center;
    color: #fff;
    background: var(--primary-grad);
    box-shadow: 0 30px 60px -30px rgba(76, 29, 149, .5);
}
:root[data-theme="ivory"] .hp-cta-band {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
    border-top: 2px solid var(--ink);
    border-radius: 2px;
    box-shadow: none;
}
.hp-cta-band h2 { margin: 0; font-family: var(--font-display); font-size: clamp(22px, 2.4vw, 30px); font-weight: 800; color: inherit; }
.hp-cta-band p { margin: 10px 0 0; font-size: 13.5px; opacity: .85; }
.hp-cta-band .hp-cta { margin-top: 24px; }
.hp-cta-band .btn-white { background: #fff; color: var(--primary); border: 1px solid transparent; }
:root[data-theme="ivory"] .hp-cta-band .btn-white { background: var(--ink); color: #faf7f2; }
.hp-cta-band .btn-ghostl { background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .4); color: #fff; }
:root[data-theme="ivory"] .hp-cta-band .btn-ghostl { background: transparent; border-color: var(--line-2); color: var(--ink-2); }

.hp-footer {
    border-top: 1px solid var(--line);
    padding: 26px 28px 38px;
    text-align: center;
    font-size: 12.5px;
    color: var(--ink-3);
}
.hp-footer .hp-footer-links {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.hp-footer a { color: var(--ink-2); font-weight: 600; }
.hp-footer a:hover { color: var(--primary); }

/* ── 6. 响应式 ──────────────────────────────────────────────────────────── */
@media (max-width: 1080px) {
    .hp-demo { grid-template-columns: 1fr; }
    .hp-steps { flex-direction: row; overflow-x: auto; padding-bottom: 4px; }
    .hp-step { min-width: 230px; }
    .hp-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hp-cases { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .hp-hero { padding: 54px 18px 60px; }
    .hp-demo, .hp-section { padding-left: 18px; padding-right: 18px; }
    .hp-stage-wrap { min-height: 320px; }
    .hp-features { grid-template-columns: 1fr; }
    .hp-cta-band { margin: 0 18px 48px; padding: 30px 22px; }
    .hp-cta .btn { width: 100%; justify-content: center; }
}