/* ==================== 首页 · 液态玻璃（与 common 设计系统一致）==================== */

.signal-hero {
    position: relative;
    min-height: min(92vh, 920px);
    padding: calc(var(--nav-stack-clearance, 104px) + clamp(28px, 5vw, 56px)) 0 clamp(48px, 8vw, 88px);
    margin: 0 calc(50% - 50vw);
    width: 100vw;
    background:
        radial-gradient(ellipse 90% 70% at 15% 25%, rgba(99, 102, 241, 0.16), transparent 55%),
        radial-gradient(ellipse 80% 60% at 88% 20%, rgba(56, 189, 248, 0.14), transparent 50%),
        radial-gradient(ellipse 60% 50% at 50% 100%, rgba(167, 139, 250, 0.1), transparent 45%),
        linear-gradient(175deg, rgba(248, 250, 252, 0.95) 0%, rgba(238, 242, 255, 0.98) 50%, rgba(240, 249, 255, 0.96) 100%);
    color: var(--ink);
    overflow: hidden;
}
@media (max-width: 768px) {
    .signal-hero {
        padding-top: calc(var(--nav-stack-clearance, 104px) + clamp(20px, 3vw, 32px));
    }
}

.signal-hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    background-position: 0 0, 0 0;
    mask-image: radial-gradient(ellipse 85% 75% at 50% 42%, #000 18%, transparent 72%);
    pointer-events: none;
}

.signal-hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.45;
    pointer-events: none;
}
.signal-hero__glow--a {
    width: min(480px, 65vw);
    height: min(480px, 65vw);
    top: -15%;
    right: -5%;
    background: rgba(129, 140, 248, 0.55);
}
.signal-hero__glow--b {
    width: min(360px, 50vw);
    height: min(360px, 50vw);
    bottom: -20%;
    left: -8%;
    background: rgba(56, 189, 248, 0.45);
}

@media (prefers-reduced-motion: no-preference) {
    .signal-hero__glow--a {
        animation: heroOrbA 14s ease-in-out infinite;
    }
    .signal-hero__glow--b {
        animation: heroOrbB 16s ease-in-out infinite;
    }
    @keyframes heroOrbA {
        0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.4; }
        50% { transform: translate(-20px, 16px) scale(1.08); opacity: 0.55; }
    }
    @keyframes heroOrbB {
        0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.38; }
        50% { transform: translate(18px, -12px) scale(1.06); opacity: 0.52; }
    }

    .signal-hero__grid {
        animation: heroGridDrift 48s linear infinite;
    }
    @keyframes heroGridDrift {
        to {
            background-position: 56px 56px, 56px 56px;
        }
    }
}

.signal-hero__layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(36px, 6vw, 56px);
    align-items: center;
}
@media (min-width: 1024px) {
    .signal-hero__layout {
        grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
        gap: clamp(40px, 5vw, 72px);
    }
}

.signal-hero__copy {
    text-align: left;
}

.signal-hero__title {
    font-size: clamp(2.1rem, 5.5vw, 3.65rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin: 0 0 1.25rem;
    color: var(--ink);
}

/* 副标题高亮：有机圆角玻璃 + 背后极光 + 扫光（文字单独叠层避免挡字） */
.signal-hero__hl {
    position: relative;
    display: inline-block;
    margin-top: 0.14em;
    padding: 0.2em 0.52em 0.26em;
    isolation: isolate;
    border-radius: clamp(18px, 4vw, 28px) clamp(12px, 2.5vw, 20px) clamp(22px, 4.5vw, 32px) clamp(14px, 3vw, 22px);
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    box-shadow:
        0 12px 40px -8px rgba(99, 102, 241, 0.22),
        0 4px 20px rgba(56, 189, 248, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.95);
    overflow: hidden;
    transform: rotate(-0.35deg);
}
.signal-hero__hl::before {
    content: '';
    position: absolute;
    z-index: 0;
    left: -35%;
    right: -35%;
    top: -60%;
    bottom: -60%;
    background: conic-gradient(
        from 200deg,
        rgba(99, 102, 241, 0.5),
        rgba(56, 189, 248, 0.45),
        rgba(167, 139, 250, 0.5),
        rgba(129, 140, 248, 0.4),
        rgba(99, 102, 241, 0.5)
    );
    border-radius: 42% 58% 48% 52% / 52% 48% 58% 42%;
    filter: blur(26px);
    opacity: 0.55;
    pointer-events: none;
}
.signal-hero__hl::after {
    content: '';
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    width: 42%;
    height: 100%;
    background: linear-gradient(
        102deg,
        transparent 0%,
        rgba(255, 255, 255, 0.06) 40%,
        rgba(255, 255, 255, 0.7) 50%,
        rgba(255, 255, 255, 0.08) 60%,
        transparent 100%
    );
    transform: translateX(-130%) skewX(-11deg);
    pointer-events: none;
}
.signal-hero__hl-text {
    position: relative;
    z-index: 2;
    display: inline-block;
    font-weight: 900;
    font-size: 1.06em;
    letter-spacing: -0.04em;
    background: linear-gradient(115deg, #1e1b6e 0%, #3730a3 22%, #4f46e5 48%, #1d4ed8 72%, #312e81 100%);
    background-size: 240% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 10px rgba(79, 70, 229, 0.38));
}

.signal-hero__desc {
    font-size: clamp(1rem, 1.35vw, 1.12rem);
    line-height: 1.75;
    color: var(--ink-light);
    max-width: 38em;
    margin: 0 0 1.75rem;
    font-weight: 500;
    padding: 0.35rem 0 0.35rem 1.15rem;
    position: relative;
    border-left: none;
}
.signal-hero__desc::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.25em;
    bottom: 0.25em;
    width: 4px;
    border-radius: 999px;
    background: linear-gradient(180deg, #6366f1, #38bdf8, #a78bfa, #6366f1);
    background-size: 100% 220%;
    background-position: 0 0;
}

.signal-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 18px;
    margin-bottom: 2rem;
}

/* Hero CTA 包裹层 · 脉冲环基础 */
.hero-cta-ring {
    position: relative;
    display: inline-flex;
    border-radius: 999px;
    isolation: isolate;
}
.hero-cta-ring::before,
.hero-cta-ring::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.65), rgba(56, 189, 248, 0.5));
    z-index: -1;
    pointer-events: none;
}

/* Hero CTA 主按钮 · 流动渐变 + 扫光容器 */
.signal-btn--primary {
    border-radius: 999px !important;
    position: relative !important;
    overflow: hidden !important;
    background: linear-gradient(135deg, #6366f1 0%, #3b82f6 35%, #0ea5e9 60%, #818cf8 85%, #6366f1 100%) !important;
    background-size: 250% auto !important;
}
/* 扫光伪元素 */
.signal-btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 55%;
    height: 100%;
    background: linear-gradient(105deg, transparent 20%, rgba(255, 255, 255, 0.52) 50%, transparent 80%);
    transform: translateX(-130%) skewX(-15deg);
    pointer-events: none;
    z-index: 1;
}
.signal-btn--ghost {
    border-radius: 999px !important;
    border: 1px solid rgba(99, 102, 241, 0.22) !important;
    color: var(--ink) !important;
    background: rgba(255, 255, 255, 0.45) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.85) !important;
}
.signal-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.75) !important;
    border-color: rgba(99, 102, 241, 0.35) !important;
}

.signal-hero__ticks {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
}
.signal-hero__ticks li {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ink-light);
    letter-spacing: 0.01em;
}
.signal-tick {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #38bdf8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    flex-shrink: 0;
}

/* 首屏右侧：动画示意（替代终端卡片） */
.signal-hero__showcase {
    position: relative;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
    /* 与全站 sketch / 玻璃气泡一致：轻微「随手放」的倾角 */
    transform: rotate(-0.65deg);
}
@media (min-width: 1024px) {
    .signal-hero__showcase {
        margin: 0;
        max-width: none;
    }
}

.hero-viz {
    --hv-pad: 3px;
    /* 不对称圆角：避免「标准应用窗口」观感 */
    --hv-r-tl: clamp(28px, 7.5vw, 46px);
    --hv-r-tr: clamp(20px, 5vw, 36px);
    --hv-r-br: clamp(34px, 8.5vw, 56px);
    --hv-r-bl: clamp(22px, 5.5vw, 38px);
    position: relative;
    padding: var(--hv-pad);
    border-radius: var(--hv-r-tl) var(--hv-r-tr) var(--hv-r-br) var(--hv-r-bl);
    background: linear-gradient(
        158deg,
        rgba(99, 102, 241, 0.42) 0%,
        rgba(56, 189, 248, 0.32) 42%,
        rgba(167, 139, 250, 0.38) 78%,
        rgba(129, 140, 248, 0.35) 100%
    );
    box-shadow:
        0 32px 80px -28px rgba(99, 102, 241, 0.32),
        0 16px 48px -24px rgba(56, 189, 248, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.7);
    filter: drop-shadow(0 12px 36px rgba(99, 102, 241, 0.12));
}
.hero-viz__aurora {
    position: absolute;
    inset: -45%;
    border-radius: 48% 52% 50% 50% / 50% 48% 52% 50%;
    background: conic-gradient(from 0deg, rgba(99, 102, 241, 0.15), rgba(56, 189, 248, 0.2), rgba(167, 139, 250, 0.18), rgba(99, 102, 241, 0.15));
    filter: blur(36px);
    opacity: 0.88;
    z-index: 0;
    pointer-events: none;
}
.hero-viz__card {
    position: relative;
    z-index: 1;
    border-radius: calc(var(--hv-r-tl) - var(--hv-pad)) calc(var(--hv-r-tr) - var(--hv-pad)) calc(var(--hv-r-br) - var(--hv-pad)) calc(var(--hv-r-bl) - var(--hv-pad));
    overflow: hidden;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(22px) saturate(1.55);
    -webkit-backdrop-filter: blur(22px) saturate(1.55);
    border: 1px solid rgba(255, 255, 255, 0.88);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.96);
}

.hero-viz__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 14px 14px 0;
    padding: 12px 16px 11px;
    border-radius: 22px 20px 26px 24px;
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-bottom: none;
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0.88) 38%, rgba(248, 250, 252, 0.75) 100%);
    box-shadow:
        0 4px 20px rgba(99, 102, 241, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.95);
}
.hero-viz__live {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--ink);
}
.hero-viz__live-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: linear-gradient(145deg, #4ade80, #22c55e);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.35);
}
.hero-viz__badge {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
    color: #3730a3;
    background: linear-gradient(135deg, rgba(224, 231, 255, 0.95), rgba(255, 255, 255, 0.85));
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.12);
}

.hero-viz__canvas {
    position: relative;
    min-height: 220px;
    padding: 8px 12px 20px;
    background:
        radial-gradient(ellipse 70% 55% at 50% 72%, rgba(99, 102, 241, 0.1), transparent 65%),
        linear-gradient(180deg, rgba(240, 249, 255, 0.35) 0%, rgba(248, 250, 252, 0.2) 100%);
}

.hero-viz__mesh {
    position: absolute;
    left: 50%;
    top: 0;
    width: min(100%, 340px);
    height: auto;
    transform: translateX(-50%);
    pointer-events: none;
    opacity: 0.92;
}
.hero-viz__node {
    fill: rgba(99, 102, 241, 0.35);
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 2;
}
.hero-viz__node--cloud {
    fill: url(#hero-viz-grad);
    fill-opacity: 0.85;
    filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.35));
}
.hero-viz__node--a,
.hero-viz__node--b {
    fill: rgba(56, 189, 248, 0.5);
}
.hero-viz__link {
    stroke: url(#hero-viz-grad);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-dasharray: 10 14;
    stroke-dashoffset: 0;
    opacity: 0.75;
}
.hero-viz__ping {
    stroke: rgba(99, 102, 241, 0.28);
    stroke-width: 1.5;
    fill: none;
    transform: rotate(-8deg);
    transform-origin: center;
    transform-box: fill-box;
}

.hero-viz__device-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 108px;
    padding-bottom: 8px;
    z-index: 2;
}
.hero-viz__rings {
    position: absolute;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}
.hero-viz__rings span {
    position: absolute;
    border: 1px solid rgba(99, 102, 241, 0.18);
    border-radius: 50%;
    aspect-ratio: 1;
}
.hero-viz__rings span:nth-child(1) { width: 72%; animation-delay: 0s; }
.hero-viz__rings span:nth-child(2) { width: 92%; animation-delay: 0.4s; opacity: 0.7; }
.hero-viz__rings span:nth-child(3) { width: 112%; animation-delay: 0.8s; opacity: 0.45; }

.hero-viz__mini {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    filter: drop-shadow(0 18px 36px rgba(99, 102, 241, 0.22));
}
.hero-viz__mini-body {
    width: clamp(120px, 28vw, 148px);
    height: clamp(72px, 17vw, 88px);
    border-radius: 14px 14px 10px 10px;
    background:
        linear-gradient(165deg, rgba(255, 255, 255, 0.95) 0%, rgba(226, 232, 240, 0.9) 18%, rgba(148, 163, 184, 0.85) 55%, rgba(71, 85, 105, 0.92) 100%);
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow:
        inset 0 2px 6px rgba(255, 255, 255, 0.85),
        inset 0 -8px 20px rgba(15, 23, 42, 0.12);
}
.hero-viz__mini-led {
    position: absolute;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 10px #4ade80, 0 0 20px rgba(74, 222, 128, 0.5);
}
.hero-viz__mini-base {
    width: clamp(88px, 22vw, 108px);
    height: 10px;
    margin-top: -1px;
    border-radius: 0 0 8px 8px;
    background: linear-gradient(180deg, #475569, #334155);
    box-shadow: 0 6px 16px rgba(15, 23, 42, 0.2);
}

.hero-viz__float-tags {
    position: absolute;
    inset: 0;
    list-style: none;
    margin: 0;
    padding: 0;
    pointer-events: none;
    z-index: 3;
}
.hero-viz__tag {
    position: absolute;
    font-size: 12px;
    font-weight: 700;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--ink);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.95);
    white-space: nowrap;
}
.hero-viz__tag--1 { top: 12%; left: 4%; }
.hero-viz__tag--2 { top: 22%; right: 2%; }
.hero-viz__tag--3 { bottom: 26%; left: 8%; }

.hero-viz__metrics {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 14px 14px 18px;
    padding: 14px 16px 16px;
    border-radius: 20px 22px 24px 18px;
    background: rgba(248, 250, 252, 0.55);
    border: 1px dashed rgba(99, 102, 241, 0.18);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}
.hero-viz__metric-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin-bottom: 6px;
}
.hero-viz__metric-track {
    height: 8px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.6);
}
.hero-viz__metric-fill {
    display: block;
    height: 100%;
    width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, #6366f1, #38bdf8);
    transform-origin: left center;
}

@media (prefers-reduced-motion: no-preference) {
    .signal-hero__hl {
        animation: heroHlFloat 8s ease-in-out infinite;
    }
    @keyframes heroHlFloat {
        0%, 100% { transform: rotate(-0.35deg) translateY(0); box-shadow: 0 12px 40px -8px rgba(99, 102, 241, 0.22), 0 4px 20px rgba(56, 189, 248, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.95); }
        50% { transform: rotate(-0.2deg) translateY(-4px); box-shadow: 0 18px 48px -6px rgba(56, 189, 248, 0.28), 0 8px 28px rgba(99, 102, 241, 0.12), inset 0 1px 0 rgba(255, 255, 255, 1); }
    }
    .signal-hero__hl::before {
        animation: heroHlBlobMorph 10s ease-in-out infinite;
    }
    @keyframes heroHlBlobMorph {
        0%, 100% {
            border-radius: 42% 58% 48% 52% / 52% 48% 58% 42%;
            transform: rotate(0deg) scale(1);
            opacity: 0.5;
        }
        33% {
            border-radius: 54% 46% 55% 45% / 45% 55% 46% 54%;
            transform: rotate(120deg) scale(1.05);
            opacity: 0.58;
        }
        66% {
            border-radius: 48% 52% 44% 56% / 56% 44% 52% 48%;
            transform: rotate(240deg) scale(1.02);
            opacity: 0.52;
        }
    }
    .signal-hero__hl::after {
        animation: heroHlSheenSweep 5.2s ease-in-out infinite;
    }
    @keyframes heroHlSheenSweep {
        0%, 14% { transform: translateX(-130%) skewX(-11deg); opacity: 0; }
        22% { opacity: 1; }
        48% { transform: translateX(320%) skewX(-11deg); opacity: 0.88; }
        56%, 100% { transform: translateX(320%) skewX(-11deg); opacity: 0; }
    }
    .signal-hero__hl-text {
        animation: heroHlGradFlow 8s ease-in-out infinite;
    }
    @keyframes heroHlGradFlow {
        0%, 100% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
    }
    .signal-hero__desc::before {
        animation: heroDescBarFlow 6s ease-in-out infinite;
    }
    @keyframes heroDescBarFlow {
        0%, 100% { background-position: 0% 0%; filter: brightness(1); }
        50% { background-position: 0% 100%; filter: brightness(1.08); }
    }

    .signal-hero__actions .btn-primary svg,
    .signal-hero__actions .btn-primary .lucide {
        animation: heroCtaSparkle 2.8s ease-in-out infinite;
    }
    @keyframes heroCtaSparkle {
        0%, 100% { transform: rotate(0deg) scale(1); }
        35% { transform: rotate(-10deg) scale(1.06); }
        65% { transform: rotate(12deg) scale(1.04); }
    }

    /* ── Hero CTA 主按钮三层动效 ── */

    /* 1. 脉冲扩散环（包裹层 ::before / ::after） */
    .hero-cta-ring::before,
    .hero-cta-ring::after {
        animation: heroCTARingPulse 2.6s ease-out infinite;
    }
    .hero-cta-ring::after {
        animation-delay: 1.3s;
    }

    /* 2. 流动渐变 + 辉光呼吸 */
    .signal-hero__actions .signal-btn--primary {
        animation: heroBtnGradFlow 6s ease-in-out infinite, heroBtnGlow 3s ease-in-out infinite;
    }
    @keyframes heroBtnGradFlow {
        0%, 100% { background-position: 0% 50%; }
        50%       { background-position: 100% 50%; }
    }
    @keyframes heroBtnGlow {
        0%, 100% { filter: drop-shadow(0 5px 16px rgba(99, 102, 241, 0.42)); }
        50%       { filter: drop-shadow(0 8px 28px rgba(37, 99, 235, 0.72)); }
    }

    /* 3. 定期扫光 */
    .signal-hero__actions .signal-btn--primary::before {
        animation: heroBtnSweep 5s ease-in-out infinite 1.2s;
    }
    @keyframes heroBtnSweep {
        0%, 20%   { transform: translateX(-130%) skewX(-15deg); opacity: 0; }
        26%        { opacity: 1; }
        58%        { transform: translateX(180%) skewX(-15deg); opacity: 0.85; }
        65%, 100%  { transform: translateX(180%) skewX(-15deg); opacity: 0; }
    }

    .hero-viz {
        animation: heroVizFloat 9s ease-in-out infinite;
    }
    @keyframes heroVizFloat {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-10px); }
    }

    .hero-viz__aurora {
        animation: heroVizAurora 14s linear infinite;
    }
    @keyframes heroVizAurora {
        to { transform: rotate(360deg); }
    }

    .hero-viz__live-dot {
        animation: heroVizLed 2.2s ease-in-out infinite;
    }
    @keyframes heroVizLed {
        0%, 100% { box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.35); transform: scale(1); }
        50% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0.15); transform: scale(1.05); }
    }

    .hero-viz__mini-led {
        animation: heroVizMiniLed 2.6s ease-in-out infinite;
    }
    @keyframes heroVizMiniLed {
        0%, 100% { opacity: 1; box-shadow: 0 0 10px #4ade80, 0 0 20px rgba(74, 222, 128, 0.5); }
        50% { opacity: 0.85; box-shadow: 0 0 14px #4ade80, 0 0 28px rgba(74, 222, 128, 0.35); }
    }

    .hero-viz__rings span {
        animation: heroVizRing 4s ease-out infinite;
    }
    @keyframes heroVizRing {
        0% { transform: scale(0.92); opacity: 0.5; }
        40% { opacity: 0.35; }
        100% { transform: scale(1.08); opacity: 0; }
    }

    .hero-viz__link {
        animation: heroVizDash 2.8s linear infinite;
    }
    @keyframes heroVizDash {
        to { stroke-dashoffset: -48; }
    }

    .hero-viz__ping {
        animation: heroVizPing 3.2s ease-out infinite;
    }
    @keyframes heroVizPing {
        0% { opacity: 0.55; transform: rotate(-8deg) scale(0.95); }
        100% { opacity: 0; transform: rotate(-8deg) scale(1.28); }
    }

    .hero-viz__tag--1 { animation: heroVizTagA 5s ease-in-out infinite; }
    .hero-viz__tag--2 { animation: heroVizTagB 5.5s ease-in-out infinite 0.3s; }
    .hero-viz__tag--3 { animation: heroVizTagC 5.2s ease-in-out infinite 0.6s; }
    @keyframes heroVizTagA {
        0%, 100% { transform: translate(0, 0); }
        50% { transform: translate(4px, -6px); }
    }
    @keyframes heroVizTagB {
        0%, 100% { transform: translate(0, 0); }
        50% { transform: translate(-5px, 5px); }
    }
    @keyframes heroVizTagC {
        0%, 100% { transform: translate(0, 0); }
        50% { transform: translate(6px, 4px); }
    }

    .hero-viz__metric-fill--a { animation: heroVizBarA 3.5s ease-in-out infinite; }
    .hero-viz__metric-fill--b { animation: heroVizBarB 4s ease-in-out infinite 0.2s; }
    .hero-viz__metric-fill--c { animation: heroVizBarC 3.2s ease-in-out infinite 0.5s; }
    @keyframes heroVizBarA {
        0%, 100% { width: 72%; opacity: 1; }
        50% { width: 94%; opacity: 0.92; }
    }
    @keyframes heroVizBarB {
        0%, 100% { width: 88%; }
        50% { width: 98%; }
    }
    @keyframes heroVizBarC {
        0%, 100% { width: 65%; }
        50% { width: 82%; }
    }
}

@media (prefers-reduced-motion: reduce) {
    .signal-hero__grid {
        animation: none !important;
    }
    .signal-hero__hl,
    .signal-hero__hl::before,
    .signal-hero__hl::after,
    .signal-hero__hl-text,
    .signal-hero__desc::before,
    .home-eyebrow__dot {
        animation: none !important;
    }
    .signal-hero__hl {
        transform: rotate(-0.35deg);
    }
    .signal-hero__hl-text {
        background: none;
        -webkit-background-clip: unset;
        background-clip: unset;
        color: #3730a3;
        -webkit-text-fill-color: #3730a3;
        filter: none;
    }
    .signal-hero__actions .btn-primary svg,
    .signal-hero__actions .btn-primary .lucide {
        animation: none !important;
    }
    /* CTA 按钮动效关闭 */
    .hero-cta-ring::before,
    .hero-cta-ring::after {
        display: none;
    }
    .signal-hero__actions .signal-btn--primary,
    .signal-hero__actions .signal-btn--primary::before {
        animation: none !important;
        filter: none !important;
    }
    .signal-hero__showcase {
        transform: none;
    }
    .hero-viz,
    .hero-viz__aurora,
    .hero-viz__live-dot,
    .hero-viz__rings span,
    .hero-viz__link,
    .hero-viz__ping,
    .hero-viz__tag--1,
    .hero-viz__tag--2,
    .hero-viz__tag--3,
    .hero-viz__metric-fill--a,
    .hero-viz__metric-fill--b,
    .hero-viz__metric-fill--c,
    .hero-viz__mini-led {
        animation: none !important;
    }
    .hero-viz__link {
        stroke-dashoffset: 0;
    }
    .hero-viz__metric-fill--a { width: 86%; }
    .hero-viz__metric-fill--b { width: 92%; }
    .hero-viz__metric-fill--c { width: 74%; }
    .hero-viz__rings span {
        opacity: 0.25;
        transform: none;
    }
    .hero-viz__ping {
        opacity: 0.25;
        transform: rotate(-8deg) scale(1);
    }
}

/* 定价板（纵向留白由 .home-section 统一控制） */
.signal-pricing {
    padding: 0;
    position: relative;
}

/* ---------- 首页定价区（home-pricing）：玻璃层次 + 卡片动效 + 新文案 ---------- */
.home-pricing .home-pricing__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin: 0 0 12px;
}
.home-pricing .home-pricing__eyebrow-line {
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, #6366f1, #38bdf8);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.35);
}
.home-pricing .home-pricing__intro {
    max-width: 40em;
    margin-left: auto;
    margin-right: auto;
}

.home-pricing__stage {
    position: relative;
    max-width: 1040px;
    margin: 0 auto;
    padding: 3px;
    border-radius: clamp(22px, 4vw, 32px) clamp(18px, 3vw, 26px) clamp(28px, 5vw, 38px) clamp(20px, 3.5vw, 28px);
    background: linear-gradient(135deg, rgba(129, 140, 248, 0.55), rgba(56, 189, 248, 0.4), rgba(167, 139, 250, 0.5));
    background-size: 180% 180%;
    box-shadow: 0 28px 72px -28px rgba(99, 102, 241, 0.35), 0 12px 36px rgba(56, 189, 248, 0.12);
    transform: rotate(-0.35deg);
}
.home-pricing__halo {
    position: absolute;
    inset: -25%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 40%, rgba(99, 102, 241, 0.2), transparent 45%),
        radial-gradient(circle at 75% 65%, rgba(56, 189, 248, 0.18), transparent 48%);
    filter: blur(32px);
    opacity: 0.85;
    z-index: 0;
    pointer-events: none;
}

.home-pricing__board {
    position: relative;
    z-index: 1;
    padding: clamp(20px, 3.5vw, 32px) clamp(18px, 3vw, 28px) clamp(22px, 3.5vw, 30px);
    border-radius: calc(clamp(22px, 4vw, 32px) - 3px) calc(clamp(18px, 3vw, 26px) - 3px) calc(clamp(28px, 5vw, 38px) - 3px) calc(clamp(20px, 3.5vw, 28px) - 3px);
    background: rgba(255, 255, 255, 0.52);
    backdrop-filter: blur(22px) saturate(1.55);
    -webkit-backdrop-filter: blur(22px) saturate(1.55);
    border: 1px solid rgba(255, 255, 255, 0.88);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.home-pricing__rail {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 16px;
    margin-bottom: 1.35rem;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.07);
}
.home-pricing__pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #22c55e, #4ade80);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.35);
    flex-shrink: 0;
}
.home-pricing__rail-title {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--ink);
    margin-right: auto;
    margin-left: 8px;
}
.home-pricing__rail-meta {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-light);
    opacity: 0.85;
}

.home-pricing__cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 1.35rem;
}
@media (min-width: 680px) {
    .home-pricing__cards {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }
}

.home-pricing__card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 22px 20px 20px;
    text-decoration: none;
    color: inherit;
    border-radius: 20px 16px 22px 18px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(14px) saturate(1.35);
    -webkit-backdrop-filter: blur(14px) saturate(1.35);
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(99, 102, 241, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: transform 0.4s var(--ease-spring), box-shadow 0.4s ease, border-color 0.3s ease;
}
.home-pricing__card-shine {
    position: absolute;
    top: 0;
    left: -60%;
    width: 45%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent);
    transform: skewX(-12deg);
    opacity: 0;
    transition: left 0.55s var(--ease-smooth), opacity 0.3s ease;
    pointer-events: none;
}
.home-pricing__card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(99, 102, 241, 0.35);
    box-shadow: 0 22px 48px -12px rgba(99, 102, 241, 0.22), 0 12px 32px rgba(56, 189, 248, 0.1), inset 0 1px 0 rgba(255, 255, 255, 1);
}
.home-pricing__card:hover .home-pricing__card-shine {
    opacity: 1;
    left: 120%;
}
.home-pricing__card--featured {
    padding-top: 26px;
    background: linear-gradient(155deg, rgba(224, 231, 255, 0.65) 0%, rgba(255, 255, 255, 0.58) 55%, rgba(240, 249, 255, 0.5) 100%);
    border-color: rgba(99, 102, 241, 0.38);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.95), 0 10px 32px rgba(99, 102, 241, 0.12);
}
.home-pricing__ribbon {
    position: absolute;
    top: 14px;
    right: -32px;
    padding: 5px 36px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: linear-gradient(90deg, #6366f1, #3b82f6);
    transform: rotate(38deg);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
    pointer-events: none;
}

.home-pricing__tier {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-light);
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    border: 1px solid rgba(15, 23, 42, 0.05);
}
.home-pricing__tier--hot {
    background: linear-gradient(135deg, #6366f1, #2563eb);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}
.home-pricing__sku {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--ink);
    margin-top: 4px;
}
.home-pricing__spec {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-light);
    line-height: 1.45;
}
.home-pricing__price-row {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 2px 6px;
    margin-top: 12px;
}
.home-pricing__currency {
    font-size: 1.35rem;
    font-weight: 800;
    color: #4f46e5;
}
.home-pricing__amount {
    font-size: clamp(2rem, 4.2vw, 2.85rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1;
    color: var(--ink);
    font-variant-numeric: tabular-nums;
}
.home-pricing__cycle {
    font-size: 14px;
    font-weight: 700;
    color: var(--ink-light);
}
.home-pricing__fineprint {
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-light);
    line-height: 1.5;
    margin-top: 6px;
    opacity: 0.92;
}

.home-pricing__tags {
    list-style: none;
    margin: 0 0 1.25rem;
    padding: 14px 16px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px 14px;
    border-radius: 18px;
    border: 1px dashed rgba(99, 102, 241, 0.28);
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.85), rgba(238, 242, 255, 0.45));
}
@media (min-width: 640px) {
    .home-pricing__tags {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 900px) {
    .home-pricing__tags {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px 16px;
    }
}
.home-pricing__tags li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.4;
    padding: 8px 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.7);
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, border-color 0.25s;
}
.home-pricing__tags li:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.22);
    box-shadow: 0 8px 22px rgba(99, 102, 241, 0.1);
}
.home-pricing__tags i {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    stroke-width: 2.15px;
    color: #6366f1;
    margin-top: 2px;
}

.home-pricing__cta-row {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
}
@media (min-width: 560px) {
    .home-pricing__cta-row {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 12px 20px;
    }
}
.home-pricing__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 800;
    text-decoration: none;
    border-radius: 999px;
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, background 0.25s ease, color 0.2s;
}
.home-pricing__link .lucide {
    width: 18px;
    height: 18px;
    stroke-width: 2.2px;
}
.home-pricing__link--primary {
    color: #fff;
    background: linear-gradient(135deg, #6366f1 0%, #3b82f6 50%, #0ea5e9 100%);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 8px 26px rgba(99, 102, 241, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.home-pricing__link--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(99, 102, 241, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.28);
    color: #fff;
}
.home-pricing__link--ghost {
    color: var(--ink);
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(99, 102, 241, 0.18);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}
.home-pricing__link--ghost:hover {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(99, 102, 241, 0.32);
    color: #4f46e5;
}

@media (prefers-reduced-motion: no-preference) {
    .home-pricing__stage {
        animation: homePricingChrome 16s ease-in-out infinite;
    }
    @keyframes homePricingChrome {
        0%, 100% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
    }
    .home-pricing__halo {
        animation: homePricingHalo 10s ease-in-out infinite;
    }
    @keyframes homePricingHalo {
        0%, 100% { transform: scale(1); opacity: 0.8; }
        50% { transform: scale(1.05); opacity: 0.95; }
    }
    .home-pricing__pulse {
        animation: homePricingPulse 2.4s ease-in-out infinite;
    }
    @keyframes homePricingPulse {
        0%, 100% { box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.35); }
        50% { box-shadow: 0 0 0 7px rgba(56, 189, 248, 0.12); }
    }
}

@media (prefers-reduced-motion: reduce) {
    .home-pricing__stage,
    .home-pricing__halo,
    .home-pricing__pulse {
        animation: none !important;
    }
    .home-pricing__card:hover .home-pricing__card-shine {
        display: none;
    }
}

/* ===== 定价区装饰动效扩展 ===== */

/* 浮动粒子背景 */
.home-pricing__particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}
.home-pricing__particles span {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99,102,241,0.55) 0%, transparent 70%);
    opacity: 0;
    pointer-events: none;
    will-change: transform, opacity;
}
.home-pricing__particles span:nth-child(1)  { width: 6px;  height: 6px;  left: 12%;  top: 22%; }
.home-pricing__particles span:nth-child(2)  { width: 4px;  height: 4px;  left: 28%;  top: 65%; }
.home-pricing__particles span:nth-child(3)  { width: 8px;  height: 8px;  left: 48%;  top: 14%; }
.home-pricing__particles span:nth-child(4)  { width: 5px;  height: 5px;  left: 66%;  top: 72%; }
.home-pricing__particles span:nth-child(5)  { width: 7px;  height: 7px;  left: 80%;  top: 30%; background: radial-gradient(circle, rgba(56,189,248,0.55) 0%, transparent 70%); }
.home-pricing__particles span:nth-child(6)  { width: 4px;  height: 4px;  left: 90%;  top: 58%; background: radial-gradient(circle, rgba(167,139,250,0.55) 0%, transparent 70%); }
.home-pricing__particles span:nth-child(7)  { width: 5px;  height: 5px;  left: 35%;  top: 85%; background: radial-gradient(circle, rgba(56,189,248,0.5) 0%, transparent 70%); }

@media (prefers-reduced-motion: no-preference) {
    .home-pricing__particles span:nth-child(1)  { animation: pricingDot 9s  ease-in-out infinite 0.0s; }
    .home-pricing__particles span:nth-child(2)  { animation: pricingDot 11s ease-in-out infinite 1.2s; }
    .home-pricing__particles span:nth-child(3)  { animation: pricingDot 8s  ease-in-out infinite 0.6s; }
    .home-pricing__particles span:nth-child(4)  { animation: pricingDot 13s ease-in-out infinite 2.1s; }
    .home-pricing__particles span:nth-child(5)  { animation: pricingDotB 10s ease-in-out infinite 0.3s; }
    .home-pricing__particles span:nth-child(6)  { animation: pricingDotB 12s ease-in-out infinite 1.7s; }
    .home-pricing__particles span:nth-child(7)  { animation: pricingDotB 9.5s ease-in-out infinite 0.9s; }

    @keyframes pricingDot {
        0%   { transform: translate(0, 0) scale(0.8);  opacity: 0; }
        15%  { opacity: 0.7; }
        50%  { transform: translate(12px, -18px) scale(1.2); opacity: 0.9; }
        85%  { opacity: 0.7; }
        100% { transform: translate(0, 0) scale(0.8);  opacity: 0; }
    }
    @keyframes pricingDotB {
        0%   { transform: translate(0, 0) scale(1);    opacity: 0; }
        20%  { opacity: 0.65; }
        50%  { transform: translate(-10px, 14px) scale(1.15); opacity: 0.85; }
        80%  { opacity: 0.6; }
        100% { transform: translate(0, 0) scale(1);    opacity: 0; }
    }
}

/* 标题高亮词：流动渐变 */
.home-pricing__title-hl {
    display: inline;
    background: linear-gradient(115deg, #4f46e5 0%, #6366f1 25%, #38bdf8 55%, #818cf8 80%, #4f46e5 100%);
    background-size: 220% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 8px rgba(99,102,241,0.3));
}

@media (prefers-reduced-motion: no-preference) {
    .home-pricing__title-hl {
        will-change: background-position, filter;
    }
    @keyframes pricingTitleGlow {
        0%,100% { background-position: 0% 50%; }
        50%      { background-position: 100% 50%; }
    }
}
@media (prefers-reduced-motion: reduce) {
    .home-pricing__title-hl {
        background: none;
        -webkit-background-clip: unset;
        background-clip: unset;
        color: var(--ink);
        -webkit-text-fill-color: var(--ink);
        filter: none;
    }
}

/* 眉标 LIVE 徽章 */
.home-pricing__eyebrow-badge {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #16a34a;
    background: rgba(22, 163, 74, 0.1);
    border: 1px solid rgba(22, 163, 74, 0.28);
    border-radius: 999px;
    padding: 3px 8px;
    margin-left: 4px;
}

@media (prefers-reduced-motion: no-preference) {
    .home-pricing__eyebrow-badge {
        will-change: transform, opacity;
        animation: pricingBadgePulse 2.8s ease-in-out infinite;
    }
    @keyframes pricingBadgePulse {
        0%, 100% { transform: scale(1);    opacity: 1; }
        50%       { transform: scale(1.05); opacity: 0.78; }
    }

    /* 眉标装饰线：transform: scaleX 替代 width，避免 layout reflow */
    .home-pricing .home-pricing__eyebrow-line {
        transform-origin: left center;
        will-change: transform, opacity;
        animation: pricingLineSweep 4.5s ease-in-out infinite;
    }
    @keyframes pricingLineSweep {
        0%,100% { transform: scaleX(1);    opacity: 1; }
        50%      { transform: scaleX(1.28); opacity: 0.88; }
    }
}

/* 价格数字：计数器动画入场状态 */
.home-pricing__amount {
    transition: opacity 0.35s ease;
}
.home-pricing__amount.counting {
    color: var(--ink);
}

/* 定价卡片：交错入场（由 JS 添加 .pricing-cards-visible） */
.home-pricing__cards .home-pricing__card {
    opacity: 0;
    transform: translateY(24px) scale(0.97);
    transition: opacity 0.55s ease, transform 0.55s var(--ease-spring);
}
.home-pricing__cards.pricing-cards-visible .home-pricing__card:nth-child(1) {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition-delay: 0.05s;
}
.home-pricing__cards.pricing-cards-visible .home-pricing__card:nth-child(2) {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition-delay: 0.2s;
}

@media (prefers-reduced-motion: reduce) {
    .home-pricing__cards .home-pricing__card {
        opacity: 1;
        transform: none;
    }
    .home-pricing__eyebrow-line,
    .home-pricing__eyebrow-badge {
        animation: none !important;
    }
    .home-pricing__particles {
        display: none;
    }
}

.signal-link-go {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--ink);
    text-decoration: none;
    padding: 8px 4px;
    border-radius: 10px;
    transition: color 0.2s, background 0.2s;
}
.signal-link-go:hover {
    color: #4f46e5;
    background: rgba(99, 102, 241, 0.08);
}
.signal-link-go--dim {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink-light);
}
.signal-link-go--dim:hover {
    color: var(--ink);
}
.signal-link-go i {
    width: 18px;
    height: 18px;
}

/* 特性区（与首页新版 .home-section 组合使用） */
.signal-features {
    padding: 0;
}

.section-header--signal h2::after {
    background: linear-gradient(90deg, #6366f1, #38bdf8, #a78bfa) !important;
    height: 5px !important;
    width: 96px !important;
    margin-left: -48px !important;
    box-shadow: 0 2px 14px rgba(99, 102, 241, 0.3) !important;
}

.section-header--tight {
    margin-top: 2.5rem;
    margin-bottom: 2rem !important;
}

.signal-feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: clamp(48px, 8vw, 80px);
}
@media (min-width: 640px) {
    .signal-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1100px) {
    .signal-feature-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

/* ---------- 首页新版：区块节奏与扩展模块 ---------- */

.home-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin: 0 0 1rem;
}
.home-eyebrow__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #38bdf8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    flex-shrink: 0;
}
@media (prefers-reduced-motion: no-preference) {
    .home-eyebrow__dot {
        animation: homeEyebrowPulse 3s ease-in-out infinite;
    }
    @keyframes homeEyebrowPulse {
        0%, 100% {
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.22);
            transform: scale(1);
        }
        50% {
            box-shadow: 0 0 0 8px rgba(56, 189, 248, 0.14);
            transform: scale(1.12);
        }
    }
}

.home-band {
    position: relative;
    z-index: 2;
    margin-top: clamp(-28px, -4vw, -12px);
    padding-bottom: clamp(8px, 2vw, 16px);
}
.home-band__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}
@media (min-width: 640px) {
    .home-band__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1024px) {
    .home-band__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}
.home-band__item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 18px 18px 16px !important;
    border-radius: var(--radius-lg) !important;
}
.home-band__item.sketch-box:hover {
    border-color: rgba(99, 102, 241, 0.3) !important;
}

/* ===== home-band 动效系统 ===== */

/* 卡片基础：相对定位 + 透视容器 + 初始隐藏（等待入场动画） */
.home-band__item {
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    will-change: transform;
    opacity: 0;
    transform: translateY(28px) scale(0.96);
}

/* 扫光元素 */
.home-band__shimmer {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    z-index: 10;
    background: linear-gradient(
        105deg,
        transparent 30%,
        rgba(255, 255, 255, 0.55) 50%,
        transparent 70%
    );
    transform: translateX(-110%) skewX(-14deg);
    opacity: 0;
    transition: opacity 0.2s ease;
}
.home-band__item:hover .home-band__shimmer {
    opacity: 1;
}

/* 图标基础过渡 */
.home-band__icon {
    transition:
        background 0.35s ease,
        box-shadow 0.35s ease,
        border-color 0.35s ease,
        transform 0.35s var(--ease-spring);
}
/* 图标 hover 光晕 */
.home-band__item:hover .home-band__icon {
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.22), rgba(56, 189, 248, 0.2));
    border-color: rgba(99, 102, 241, 0.42);
    box-shadow:
        0 0 0 5px rgba(99, 102, 241, 0.1),
        0 4px 20px rgba(99, 102, 241, 0.28);
    transform: scale(1.08);
}

/* --- 交错入场动画（由 .home-band__grid.visible 触发） --- */
@media (prefers-reduced-motion: no-preference) {
    .home-band__grid.visible .home-band__item:nth-child(1) {
        animation: bandItemIn 0.65s var(--ease-spring) 0.0s both;
    }
    .home-band__grid.visible .home-band__item:nth-child(2) {
        animation: bandItemIn 0.65s var(--ease-spring) 0.12s both;
    }
    .home-band__grid.visible .home-band__item:nth-child(3) {
        animation: bandItemIn 0.65s var(--ease-spring) 0.24s both;
    }
    .home-band__grid.visible .home-band__item:nth-child(4) {
        animation: bandItemIn 0.65s var(--ease-spring) 0.36s both;
    }
    @keyframes bandItemIn {
        from {
            opacity: 0;
            transform: translateY(28px) scale(0.96);
        }
        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }

    /* 扫光动画：hover 触发 */
    .home-band__item:hover .home-band__shimmer {
        animation: bandShimmer 0.62s ease forwards;
    }
    @keyframes bandShimmer {
        from { transform: translateX(-110%) skewX(-14deg); }
        to   { transform: translateX(160%) skewX(-14deg); }
    }

    /* 图标悬浮漂移，各卡片相位错开 */
    .home-band__grid.visible .home-band__item:nth-child(1) .home-band__icon {
        animation: bandIconFloat 3.8s ease-in-out infinite 0.4s;
    }
    .home-band__grid.visible .home-band__item:nth-child(2) .home-band__icon {
        animation: bandIconFloat 4.2s ease-in-out infinite 0.9s;
    }
    .home-band__grid.visible .home-band__item:nth-child(3) .home-band__icon {
        animation: bandIconFloat 3.6s ease-in-out infinite 1.4s;
    }
    .home-band__grid.visible .home-band__item:nth-child(4) .home-band__icon {
        animation: bandIconFloat 4.5s ease-in-out infinite 1.9s;
    }
    @keyframes bandIconFloat {
        0%, 100% { transform: translateY(0) scale(1); }
        50%       { transform: translateY(-5px) scale(1.04); }
    }

    /* hover 时图标停止漂浮，切换到放大效果（由 hover 规则覆盖 animation） */
    .home-band__item:hover .home-band__icon {
        animation: none !important;
    }
}

/* reduced-motion：直接显示 */
@media (prefers-reduced-motion: reduce) {
    .home-band__item {
        opacity: 1;
        transform: none;
    }
    .home-band__grid.visible .home-band__item {
        animation: none !important;
    }
    .home-band__shimmer {
        display: none;
    }
}
.home-band__icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(56, 189, 248, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.15);
    color: #4f46e5;
}
.home-band__icon i {
    width: 22px;
    height: 22px;
    stroke-width: 2.1px;
}
.home-band__body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.home-band__k {
    font-size: 15px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.home-band__v {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-light);
    line-height: 1.45;
}

.home-section {
    padding: clamp(48px, 8vw, 96px) 0;
    position: relative;
}
.home-section--muted {
    margin: 0 calc(50% - 50vw);
    width: 100vw;
    max-width: 100vw;
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
    box-sizing: border-box;
    background:
        radial-gradient(ellipse 70% 50% at 10% 0%, rgba(99, 102, 241, 0.07), transparent 55%),
        radial-gradient(ellipse 60% 45% at 92% 100%, rgba(56, 189, 248, 0.08), transparent 50%),
        linear-gradient(180deg, rgba(248, 250, 252, 0.97) 0%, rgba(238, 242, 255, 0.5) 50%, rgba(240, 249, 255, 0.55) 100%);
    border-block: 1px solid rgba(99, 102, 241, 0.07);
}
.home-section--muted .container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 0;
    padding-right: 0;
}

.home-bento {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: clamp(40px, 7vw, 64px);
}
@media (min-width: 700px) {
    .home-bento {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 1100px) {
    .home-bento {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}
.home-bento__card {
    margin: 0;
    height: 100%;
}

.home-workflow {
    display: grid;
    gap: clamp(20px, 3vw, 28px);
    align-items: stretch;
}
@media (min-width: 960px) {
    .home-workflow {
        grid-template-columns: 1.12fr 0.88fr;
    }
}
.home-workflow__panel {
    padding: clamp(22px, 3vw, 32px) clamp(18px, 3vw, 28px) !important;
    text-align: left;
}
.home-workflow__panel .signal-timeline__list {
    margin: 0;
}
.home-workflow__panel .signal-timeline__list::before {
    opacity: 0.35;
}
.home-workflow__aside {
    padding: clamp(22px, 3vw, 28px) !important;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.home-workflow__aside-title {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--ink);
    padding-bottom: 4px;
    border-bottom: 2px solid rgba(99, 102, 241, 0.12);
}
.home-scene-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 10px;
}
.home-scene-list li {
    display: flex;
    align-items: center;
    flex: 1;
    gap: 14px;
    padding: 0 16px;
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.45;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(99, 102, 241, 0.1);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.85);
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, border-color 0.25s ease, background 0.25s ease;
}
.home-scene-list li:hover {
    transform: translateX(6px);
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(99, 102, 241, 0.26);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.13), inset 0 1px 0 rgba(255, 255, 255, 0.95);
}
/* 图标方块容器（i 被 Lucide 替换为 svg 后 CSS 同样生效） */
.home-scene-list li > i,
.home-scene-list li > svg {
    width: 20px;
    height: 20px;
    min-width: 20px;
    flex-shrink: 0;
    stroke-width: 2px;
    color: #6366f1;
    padding: 9px;
    box-sizing: content-box;
    border-radius: 10px;
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(56, 189, 248, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.14);
}
.home-scene-list li:hover > i,
.home-scene-list li:hover > svg {
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.2), rgba(56, 189, 248, 0.18));
    border-color: rgba(99, 102, 241, 0.28);
}
.home-workflow__aside-foot {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-light);
}
.home-workflow__aside-foot a {
    font-weight: 800;
    color: #4f46e5;
    text-decoration: none;
    border-bottom: 2px solid rgba(99, 102, 241, 0.35);
}
.home-workflow__aside-foot a:hover {
    color: #2563eb;
}

.home-reading {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: 1.25rem;
}
@media (min-width: 768px) {
    .home-reading {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}
.home-reading-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
    color: inherit;
    padding: 22px 20px !important;
    height: 100%;
    transition: transform 0.35s var(--ease-spring), box-shadow 0.35s ease, border-color 0.25s !important;
}
.home-reading-card:hover {
    transform: translateY(-6px) !important;
    border-color: rgba(99, 102, 241, 0.28) !important;
}
.home-reading-card__tag {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #4f46e5;
    margin-bottom: 10px;
}
.home-reading-card__title {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 10px;
    line-height: 1.35;
    color: var(--ink);
}
.home-reading-card__excerpt {
    font-size: 14px;
    color: var(--ink-light);
    line-height: 1.6;
    margin: 0 0 14px;
    flex: 1;
}
.home-reading-card__more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: #4f46e5;
}
.home-reading-card__more i {
    width: 16px;
    height: 16px;
}
.home-reading-cta {
    text-align: center;
    margin: 0;
}

/* 底部 CTA：悬浮有机卡片 + 光晕/网格动效，非通栏死板矩形 */
.home-cta {
    margin: 0;
    padding: clamp(32px, 6vw, 56px) 0 clamp(56px, 9vw, 88px);
    position: relative;
    overflow: visible;
}
.home-cta__wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

.home-cta__shell {
    --cta-r1: clamp(22px, 4vw, 36px);
    --cta-r2: clamp(18px, 3.5vw, 30px);
    --cta-r3: clamp(28px, 5vw, 44px);
    --cta-r4: clamp(20px, 3vw, 32px);
    position: relative;
    padding: 3px;
    border-radius: var(--cta-r1) var(--cta-r2) var(--cta-r3) var(--cta-r4);
    background: linear-gradient(
        125deg,
        rgba(129, 140, 248, 0.85),
        rgba(56, 189, 248, 0.65),
        rgba(167, 139, 250, 0.75),
        rgba(99, 102, 241, 0.8)
    );
    background-size: 200% 200%;
    box-shadow:
        0 32px 80px -24px rgba(99, 102, 241, 0.45),
        0 16px 48px -20px rgba(56, 189, 248, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.35);
    transform: rotate(-0.4deg);
    filter: drop-shadow(0 20px 40px rgba(30, 27, 75, 0.2));
}
.home-cta__halo {
    position: absolute;
    inset: -30%;
    border-radius: 45% 55% 50% 50%;
    background: radial-gradient(ellipse at 30% 40%, rgba(99, 102, 241, 0.35), transparent 55%),
        radial-gradient(ellipse at 70% 60%, rgba(56, 189, 248, 0.28), transparent 50%);
    filter: blur(40px);
    opacity: 0.75;
    z-index: 0;
    pointer-events: none;
}
.home-cta__bg {
    position: absolute;
    inset: 0;
    border-radius: calc(var(--cta-r1) - 3px) calc(var(--cta-r2) - 3px) calc(var(--cta-r3) - 3px) calc(var(--cta-r4) - 3px);
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}
.home-cta__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(36px);
    opacity: 0.55;
    pointer-events: none;
}
.home-cta__orb--a {
    width: min(280px, 55vw);
    height: min(200px, 40vw);
    top: -18%;
    left: -8%;
    background: rgba(99, 102, 241, 0.55);
}
.home-cta__orb--b {
    width: min(220px, 45vw);
    height: min(180px, 38vw);
    bottom: -25%;
    right: -5%;
    background: rgba(56, 189, 248, 0.5);
}
.home-cta__orb--c {
    width: min(160px, 35vw);
    height: min(160px, 35vw);
    top: 20%;
    right: 10%;
    background: rgba(244, 114, 182, 0.22);
}
.home-cta__mesh {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: 0 0;
    mask-image: radial-gradient(ellipse 85% 75% at 50% 45%, #000 0%, transparent 72%);
    opacity: 0.5;
}

.home-cta__panel {
    position: relative;
    z-index: 2;
    border-radius: calc(var(--cta-r1) - 3px) calc(var(--cta-r2) - 3px) calc(var(--cta-r3) - 3px) calc(var(--cta-r4) - 3px);
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(20px) saturate(1.35);
    -webkit-backdrop-filter: blur(20px) saturate(1.35);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.home-cta__inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    gap: clamp(22px, 4vw, 32px);
    padding: clamp(28px, 5vw, 44px) clamp(22px, 4vw, 40px);
}
@media (min-width: 900px) {
    .home-cta__inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
}

.home-cta__copy {
    display: flex;
    flex-direction: column;
}
@media (max-width: 899px) {
    .home-cta__copy {
        align-items: center;
    }
    .home-cta__copy p {
        text-align: center;
    }
}

.home-cta__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #a5b4fc;
    margin: 0 0 12px;
}
.home-cta__eyebrow-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, #38bdf8, #818cf8);
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.35);
}
.home-cta__copy h2 {
    font-size: clamp(1.5rem, 3.2vw, 2.15rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    margin: 0 0 14px;
    line-height: 1.22;
    color: #f8fafc;
    text-wrap: balance;
}
.home-cta__copy h2::after {
    display: none;
}
.home-cta__copy p {
    margin: 0;
    font-size: clamp(15px, 1.5vw, 17px);
    line-height: 1.65;
    color: #cbd5e1;
    font-weight: 500;
    max-width: 38em;
}
@media (min-width: 900px) {
    .home-cta__copy p {
        margin-right: auto;
    }
}

.home-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 14px;
    justify-content: center;
    align-items: center;
}
@media (min-width: 900px) {
    .home-cta__actions {
        justify-content: flex-end;
        flex-shrink: 0;
        flex-direction: row;
        align-items: center;
    }
}

.home-cta__btn {
    position: relative;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, background 0.25s ease, border-color 0.25s ease;
    overflow: hidden;
    white-space: nowrap;
}
@media (max-width: 400px) {
    .home-cta__btn {
        white-space: normal;
        text-align: center;
    }
}
.home-cta__btn .lucide {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke-width: 2.25px;
}
.home-cta__btn--primary {
    color: #fff;
    background: linear-gradient(135deg, #6366f1 0%, #3b82f6 45%, #0ea5e9 100%);
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 8px 28px rgba(99, 102, 241, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.home-cta__btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, 0.22) 50%, transparent 65%);
    transform: translateX(-100%);
    transition: transform 0.55s var(--ease-smooth);
}
.home-cta__btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(99, 102, 241, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}
.home-cta__btn--primary:hover::before {
    transform: translateX(100%);
}
.home-cta__btn--primary:active {
    transform: translateY(-1px) scale(0.98);
}

.home-cta__btn--glass {
    color: #f1f5f9;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.home-cta__btn--glass:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.42);
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.home-cta__btn--glass:active {
    transform: translateY(0) scale(0.98);
}

@media (prefers-reduced-motion: no-preference) {
    .home-cta__shell {
        animation: homeCtaBgShift 14s ease-in-out infinite;
    }
    @keyframes homeCtaBgShift {
        0%, 100% { background-position: 0% 40%; }
        50% { background-position: 100% 60%; }
    }
    .home-cta__halo {
        animation: homeCtaHalo 12s ease-in-out infinite;
    }
    @keyframes homeCtaHalo {
        0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.7; }
        50% { transform: scale(1.06) rotate(6deg); opacity: 0.85; }
    }
    .home-cta__orb--a {
        animation: homeCtaOrbA 11s ease-in-out infinite;
    }
    .home-cta__orb--b {
        animation: homeCtaOrbB 13s ease-in-out infinite 0.5s;
    }
    .home-cta__orb--c {
        animation: homeCtaOrbC 9s ease-in-out infinite 1s;
    }
    @keyframes homeCtaOrbA {
        0%, 100% { transform: translate(0, 0); }
        50% { transform: translate(12px, 8px); }
    }
    @keyframes homeCtaOrbB {
        0%, 100% { transform: translate(0, 0); }
        50% { transform: translate(-10px, -14px); }
    }
    @keyframes homeCtaOrbC {
        0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.45; }
        50% { transform: translate(-6px, 10px) scale(1.08); opacity: 0.65; }
    }
    .home-cta__mesh {
        animation: homeCtaMeshDrift 36s linear infinite;
    }
    @keyframes homeCtaMeshDrift {
        to { background-position: 40px 40px; }
    }
    .home-cta__eyebrow-dot {
        animation: homeCtaEyebrowDot 2.6s ease-in-out infinite;
    }
    @keyframes homeCtaEyebrowDot {
        0%, 100% { box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.35); }
        50% { box-shadow: 0 0 0 8px rgba(56, 189, 248, 0.15); }
    }
}

@media (prefers-reduced-motion: reduce) {
    .home-cta__shell,
    .home-cta__halo,
    .home-cta__orb--a,
    .home-cta__orb--b,
    .home-cta__orb--c,
    .home-cta__mesh,
    .home-cta__eyebrow-dot {
        animation: none !important;
    }
    .home-cta__btn--primary::before {
        display: none;
    }
}

.signal-feature-card {
    padding: 26px 22px !important;
    border: 1px solid rgba(255, 255, 255, 0.72) !important;
    border-radius: var(--radius-lg) !important;
    background: rgba(255, 255, 255, 0.48) !important;
    backdrop-filter: blur(18px) saturate(1.45) !important;
    -webkit-backdrop-filter: blur(18px) saturate(1.45) !important;
    box-shadow: var(--shadow-sketch) !important;
    transition: transform 0.4s var(--ease-spring), box-shadow 0.4s ease, border-color 0.3s ease !important;
}
.signal-feature-card:hover {
    transform: translateY(-8px) !important;
    box-shadow: var(--shadow-sketch-hover) !important;
    border-color: rgba(99, 102, 241, 0.28) !important;
}

.signal-feature-card__icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #6366f1, #4f46e5);
    color: #fff;
    border-radius: 14px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.signal-feature-card__icon i {
    width: 26px;
    height: 26px;
    stroke-width: 2px;
}
.signal-feature-card__icon--b {
    background: linear-gradient(145deg, #0ea5e9, #2563eb);
}
.signal-feature-card__icon--c {
    background: linear-gradient(145deg, #8b5cf6, #6366f1);
}
.signal-feature-card__icon--d {
    background: linear-gradient(145deg, #ec4899, #f97316);
}
.signal-feature-card__icon--e {
    background: linear-gradient(145deg, #14b8a6, #0d9488);
}
.signal-feature-card__icon--f {
    background: linear-gradient(145deg, #64748b, #475569);
}

.signal-feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 10px;
    color: var(--ink);
}
.signal-feature-card p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--ink-light);
    margin: 0;
}

/* 时间线 */
.signal-timeline {
    max-width: 720px;
    margin: 0 auto clamp(48px, 8vw, 72px);
    text-align: center;
}
.signal-timeline__title {
    font-size: clamp(1.35rem, 2.5vw, 1.65rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin: 0 0 10px;
}
.signal-timeline__lead {
    font-size: 16px;
    color: var(--ink-light);
    margin: 0 0 2rem;
}

.signal-timeline__list {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
}
.signal-timeline__list::before {
    content: '';
    position: absolute;
    left: 2.25rem;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #6366f1, #38bdf8, #a78bfa);
    border-radius: 999px;
    opacity: 0.45;
}
@media (max-width: 520px) {
    .signal-timeline__list::before {
        left: 1.5rem;
    }
}

.signal-timeline__list > li {
    display: grid;
    grid-template-columns: 4.5rem 1fr;
    gap: 16px;
    align-items: start;
}
@media (max-width: 520px) {
    .signal-timeline__list > li {
        grid-template-columns: 3rem 1fr;
        gap: 12px;
    }
}

.signal-timeline__num {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 13px;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(145deg, #6366f1, #3b82f6);
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
    position: relative;
    z-index: 1;
}

.signal-timeline__body {
    padding: 20px 20px 18px !important;
    border: 1px solid rgba(255, 255, 255, 0.72) !important;
    border-radius: var(--radius-lg) !important;
    background: rgba(255, 255, 255, 0.5) !important;
    backdrop-filter: blur(14px) !important;
    -webkit-backdrop-filter: blur(14px) !important;
}
.signal-timeline__body strong {
    display: block;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}
.signal-timeline__body p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--ink-light);
    margin: 0;
}

/* 场景标签 */
.signal-scenes {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.signal-scenes__title {
    font-size: clamp(1.25rem, 2.2vw, 1.5rem);
    font-weight: 700;
    margin: 0 0 1.25rem;
    letter-spacing: -0.02em;
}
.signal-scenes__pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 12px;
    margin-bottom: 1.25rem;
}
.signal-pill {
    display: inline-block;
    padding: 11px 18px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.85);
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
}
.signal-pill:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.25);
}

.signal-scenes__foot {
    font-size: 15px;
    color: var(--ink-light);
    line-height: 1.65;
    margin: 0;
}
.signal-scenes__foot a {
    font-weight: 700;
    color: #4f46e5;
    text-decoration: none;
    border-bottom: 2px solid rgba(99, 102, 241, 0.35);
    transition: color 0.2s, border-color 0.2s;
}
.signal-scenes__foot a:hover {
    color: #2563eb;
    border-bottom-color: #38bdf8;
}

/* 首页 main：首屏与顶栏衔接 */
#page-home.home-page.page-main {
    padding-top: 0;
    min-height: 0;
}

/* ===== section-header--signal 重设计：眉标 + 渐变词 + 装饰线 ===== */

/* 眉标胶囊 */
.section-header--signal .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-light);
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.68);
    border: 1px solid rgba(99, 102, 241, 0.18);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 14px rgba(99, 102, 241, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.92);
    margin: 0 0 20px;
    position: relative;
    z-index: 1;
}
.section-header--signal .section-eyebrow::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #38bdf8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
    flex-shrink: 0;
}
@media (prefers-reduced-motion: no-preference) {
    .section-header--signal .section-eyebrow::before {
        animation: sectionEyebrowDot 3.2s ease-in-out infinite;
    }
    @keyframes sectionEyebrowDot {
        0%, 100% { transform: scale(1);    box-shadow: 0 0 0 3px rgba(99,102,241,0.18); }
        50%       { transform: scale(1.15); box-shadow: 0 0 0 6px rgba(56,189,248,0.12); }
    }
}

/* h2 关键词高亮：流动渐变 */
.section-header--signal .section-h2-hl {
    background: linear-gradient(115deg, #4f46e5 0%, #6366f1 30%, #38bdf8 60%, #818cf8 85%, #4f46e5 100%);
    background-size: 220% auto;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
@media (prefers-reduced-motion: no-preference) {
    .section-header--signal .section-h2-hl {
        will-change: background-position, filter;
    }
    @keyframes sectionHlFlow {
        0%, 100% { background-position: 0% 50%; }
        50%       { background-position: 100% 50%; }
    }
}
@media (prefers-reduced-motion: reduce) {
    .section-header--signal .section-h2-hl {
        background: none;
        -webkit-background-clip: unset;
        background-clip: unset;
        color: var(--ink);
        -webkit-text-fill-color: var(--ink);
    }
}

/* 下划装饰线：渐变 + 中心亮点 */
.section-header--signal h2::after {
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(99,102,241,0.5) 15%,
        #6366f1 35%,
        #38bdf8 50%,
        #a78bfa 65%,
        rgba(167,139,250,0.5) 85%,
        transparent 100%
    ) !important;
    height: 4px !important;
    width: 100px !important;
    margin-left: -50px !important;
    border-radius: 999px !important;
    box-shadow: 0 0 18px rgba(99,102,241,0.45), 0 0 6px rgba(56,189,248,0.35) !important;
}

/* 头部整体背景：轻柔光晕衬底 */
.section-header--signal {
    position: relative;
    isolation: isolate;
}
.section-header--signal::before {
    content: '';
    position: absolute;
    inset: -40% -20%;
    background: radial-gradient(ellipse 70% 55% at 50% 50%,
        rgba(99, 102, 241, 0.07) 0%,
        transparent 65%);
    pointer-events: none;
    z-index: 0;
}
.section-header--signal > * {
    position: relative;
    z-index: 1;
}

/* ===== 区块大标题 · 额外动效（定价 / 能力 / 流程 / 阅读）===== */

/* 定价区：后半句下的霓虹柔光带 */
.home-pricing__title-tail {
    position: relative;
    display: inline-block;
    z-index: 0;
}
.home-pricing__title-tail::after {
    content: '';
    position: absolute;
    left: -0.08em;
    right: -0.12em;
    bottom: 0.02em;
    height: 0.42em;
    border-radius: 999px;
    background: linear-gradient(92deg, rgba(99, 102, 241, 0.85), #38bdf8 45%, #a78bfa 72%, rgba(236, 72, 153, 0.75));
    filter: blur(11px);
    opacity: 0.62;
    z-index: -1;
    pointer-events: none;
    transform: scaleX(0.92);
    transform-origin: center bottom;
}

@media (prefers-reduced-motion: no-preference) {
    .home-pricing__title-tail::after {
        animation: homePricingTitleAura 5s ease-in-out infinite;
    }
    @keyframes homePricingTitleAura {
        0%, 100% { opacity: 0.52; transform: scaleX(0.88) translateY(0); filter: blur(11px); }
        50% { opacity: 0.78; transform: scaleX(1) translateY(1px); filter: blur(14px); }
    }

    /* 渐变词：流动色 + 呼吸光晕（keyframes 定义见上文） */
    .section-header--signal .section-h2-hl {
        animation:
            sectionHlFlow 8s ease-in-out infinite,
            sectionTitleHlAura 3.2s ease-in-out infinite;
    }
    .home-pricing__title-hl {
        animation:
            pricingTitleGlow 7s ease-in-out infinite,
            sectionTitleHlAura 3.4s ease-in-out infinite 0.15s;
    }
    @keyframes sectionTitleHlAura {
        0%, 100% {
            filter: drop-shadow(0 2px 10px rgba(99, 102, 241, 0.32));
        }
        50% {
            filter: drop-shadow(0 4px 18px rgba(56, 189, 248, 0.48)) drop-shadow(0 0 20px rgba(167, 139, 250, 0.22));
        }
    }

    /* h2 底装饰线：保留入场 novaLineGrow，再接持续微光扫动 */
    .section-header.section-header--signal.fade-in.visible h2::after {
        animation:
            novaLineGrow 0.75s var(--ease-smooth) 0.12s forwards,
            sectionTitleUnderlineAura 4s ease-in-out infinite 0.88s;
    }
    @keyframes sectionTitleUnderlineAura {
        0%, 100% {
            opacity: 1;
            box-shadow: 0 0 18px rgba(99, 102, 241, 0.45), 0 0 6px rgba(56, 189, 248, 0.35);
            filter: brightness(1);
        }
        50% {
            opacity: 1;
            box-shadow: 0 0 26px rgba(99, 102, 241, 0.55), 0 0 14px rgba(56, 189, 248, 0.42), 0 0 20px rgba(167, 139, 250, 0.25);
            filter: brightness(1.12);
        }
    }

    /* 眉标胶囊：悬停轻抬 + 边框高光 */
    .section-header--signal .section-eyebrow,
    .home-pricing .home-pricing__eyebrow {
        transition: transform 0.4s var(--ease-spring), box-shadow 0.35s ease, border-color 0.3s ease, background 0.3s ease;
    }
    .section-header--signal .section-eyebrow:hover,
    .home-pricing .home-pricing__eyebrow:hover {
        transform: translateY(-3px);
        border-color: rgba(99, 102, 241, 0.32);
        box-shadow: 0 10px 28px rgba(99, 102, 241, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.95);
    }

    /* 大标题整体：悬停时渐变词略提亮（不影响布局） */
    .section-header--signal h2 {
        transition: transform 0.45s var(--ease-spring);
    }
    .section-header--signal h2:hover {
        transform: translateY(-1px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .home-pricing__title-tail::after {
        display: none;
    }
    .section-header--signal .section-h2-hl,
    .home-pricing__title-hl {
        animation: none !important;
    }
    .section-header.section-header--signal.fade-in.visible h2::after {
        animation: none !important;
    }
    .section-header--signal .section-eyebrow,
    .home-pricing .home-pricing__eyebrow,
    .section-header--signal h2 {
        transition: none;
    }
    .section-header--signal .section-eyebrow:hover,
    .home-pricing .home-pricing__eyebrow:hover {
        transform: none;
    }
    .section-header--signal h2:hover {
        transform: none;
    }
}