/* ============================================================
   解决方案首屏：左文案 + 右原生 SVG 插画
   与首页双十一 banner 同一套视觉语言：弥散光、轨道、悬浮卡片、彩色磁贴
   ============================================================ */

.sol-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 88px 0 96px;
    background-color: var(--sol-bg, #f4f7ff);
    background-image:
        radial-gradient(46% 64% at 88% 8%, var(--sol-glow, rgba(88, 130, 255, .28)) 0%, rgba(255, 255, 255, 0) 68%),
        radial-gradient(52% 70% at 8% 108%, var(--sol-glow-2, rgba(124, 92, 255, .16)) 0%, rgba(255, 255, 255, 0) 66%),
        linear-gradient(116deg, #ffffff 0%, var(--sol-bg, #f4f7ff) 58%, var(--sol-bg-2, #ffffff) 100%);
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.sol-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image: radial-gradient(var(--sol-dot, rgba(36, 88, 246, .10)) 1.1px, transparent 1.1px);
    background-size: 22px 22px;
    -webkit-mask-image: linear-gradient(118deg, rgba(0, 0, 0, .55) 0%, transparent 46%);
    mask-image: linear-gradient(118deg, rgba(0, 0, 0, .55) 0%, transparent 46%);
}

.sol-hero__inner {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 36px;
}

.sol-hero__copy {
    max-width: 620px;
}

.sol-hero__kicker {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 13px;
    margin-bottom: 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .82);
    border: 1px solid rgba(255, 255, 255, .9);
    box-shadow: 0 8px 22px -12px rgba(23, 34, 46, .28);
    color: var(--sol-primary, #2458f6);
    font-size: 13px;
    font-weight: 600;
    line-height: 1;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.sol-hero__title {
    margin: 0;
    color: #141b2d;
    font-size: clamp(32px, 3.5vw, 52px);
    line-height: 1.22;
    font-weight: 800;
    letter-spacing: -.5px;
}

.sol-hero__title em {
    font-style: normal;
    background-image: linear-gradient(96deg, var(--sol-primary, #2458f6) 0%, var(--sol-accent, #7c5cff) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.sol-hero__sub {
    margin: 22px 0 0;
    color: #566070;
    font-size: clamp(15px, 1.28vw, 18px);
    line-height: 1.8;
}

.sol-hero__actions {
    margin-top: 32px;
}

.sol-hero__actions .d-flex {
    justify-content: flex-start !important;
    margin-top: 0 !important;
}

.sol-hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.sol-hero__stat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .9);
    color: #2a3547;
    font-size: 13px;
    line-height: 1;
    box-shadow: 0 6px 18px -10px rgba(23, 66, 130, .28);
}

.sol-hero__stat .bi {
    color: var(--sol-primary, #2458f6);
}

.sol-hero__note {
    margin: 16px 0 0;
    color: #7a8496;
    font-size: 12.5px;
    line-height: 1.6;
}

.sol-hero__note .bi {
    margin-right: 3px;
}

/* ---------- 插画舞台 ---------- */
.sol-hero__art {
    width: 100%;
    max-width: 600px;
    margin-left: auto;
}

.sol-hero__art svg {
    display: block;
    width: 100%;
    height: auto;
    overflow: visible;
}

/* 悬浮磁贴 / 卡片 */
.sa-float {
    animation: saFloat 7s ease-in-out infinite;
    transform-box: fill-box;
    transform-origin: center;
}

.sa-float--2 { animation-duration: 8.4s; animation-delay: -2.1s; }
.sa-float--3 { animation-duration: 9.6s; animation-delay: -4.2s; }
.sa-float--4 { animation-duration: 7.8s; animation-delay: -1.2s; }
.sa-float--5 { animation-duration: 10.2s; animation-delay: -3.3s; }
.sa-float--6 { animation-duration: 8.8s; animation-delay: -5.1s; }

@keyframes saFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-9px); }
}

/* 轨道缓慢旋转 */
.sa-orbit {
    animation: saOrbit 30s linear infinite;
    transform-origin: 320px 300px;
}

@keyframes saOrbit {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 星光呼吸 */
.sa-spark {
    animation: saSpark 4.6s ease-in-out infinite;
    transform-box: fill-box;
    transform-origin: center;
}

.sa-spark--2 { animation-delay: -1.5s; animation-duration: 5.8s; }
.sa-spark--3 { animation-delay: -3s; animation-duration: 6.6s; }

@keyframes saSpark {
    0%, 100% { opacity: .35; transform: scale(.86); }
    50% { opacity: 1; transform: scale(1.12); }
}

@media (prefers-reduced-motion: reduce) {
    .sa-float,
    .sa-orbit,
    .sa-spark {
        animation: none;
    }
}

/* ---------- 各解决方案主题色 ---------- */
.sol-hero--knowledge {
    --sol-primary: #2458f6;
    --sol-accent: #7c5cff;
    --sol-bg: #f2f7ff;
    --sol-bg-2: #fbfdff;
    --sol-glow: rgba(98, 140, 255, .30);
    --sol-glow-2: rgba(124, 92, 255, .16);
    --sol-dot: rgba(36, 88, 246, .09);
}

.sol-hero--edu {
    --sol-primary: #0e9f8f;
    --sol-accent: #2fbf71;
    --sol-bg: #f0fbf7;
    --sol-bg-2: #fbfffd;
    --sol-glow: rgba(45, 190, 140, .26);
    --sol-glow-2: rgba(14, 159, 143, .14);
    --sol-dot: rgba(14, 159, 143, .09);
}

.sol-hero--jiaowu {
    --sol-primary: #4f5bd5;
    --sol-accent: #22b573;
    --sol-bg: #f4f5ff;
    --sol-bg-2: #fcfcff;
    --sol-glow: rgba(86, 100, 230, .26);
    --sol-glow-2: rgba(34, 181, 115, .14);
    --sol-dot: rgba(79, 91, 213, .09);
}

.sol-hero--shequn {
    --sol-primary: #7c3aed;
    --sol-accent: #ec4899;
    --sol-bg: #f8f4ff;
    --sol-bg-2: #fdfbff;
    --sol-glow: rgba(150, 90, 240, .26);
    --sol-glow-2: rgba(236, 72, 153, .14);
    --sol-dot: rgba(124, 58, 237, .09);
}

.sol-hero--dianshang {
    --sol-primary: #f97316;
    --sol-accent: #ef4444;
    --sol-bg: #fff6ee;
    --sol-bg-2: #fffdfb;
    --sol-glow: rgba(255, 140, 60, .28);
    --sol-glow-2: rgba(239, 68, 68, .12);
    --sol-dot: rgba(249, 115, 22, .10);
}

.sol-hero--live {
    --sol-primary: #f43f5e;
    --sol-accent: #ff8a00;
    --sol-bg: #fff3f2;
    --sol-bg-2: #fffdfc;
    --sol-glow: rgba(255, 100, 110, .26);
    --sol-glow-2: rgba(255, 138, 0, .14);
    --sol-dot: rgba(244, 63, 94, .09);
}

.sol-hero--livecourse {
    --sol-primary: #ef4444;
    --sol-accent: #f59e0b;
    --sol-bg: #fff5f0;
    --sol-bg-2: #fffdfb;
    --sol-glow: rgba(255, 110, 80, .26);
    --sol-glow-2: rgba(245, 158, 11, .14);
    --sol-dot: rgba(239, 68, 68, .09);
}

.sol-hero--livegoods {
    --sol-primary: #ec4899;
    --sol-accent: #f97316;
    --sol-bg: #fff2f8;
    --sol-bg-2: #fffcfd;
    --sol-glow: rgba(255, 110, 180, .26);
    --sol-glow-2: rgba(249, 115, 22, .14);
    --sol-dot: rgba(236, 72, 153, .09);
}

.sol-hero--liveprivate {
    --sol-primary: #8b5cf6;
    --sol-accent: #f43f5e;
    --sol-bg: #f7f3ff;
    --sol-bg-2: #fdfcff;
    --sol-glow: rgba(150, 110, 250, .26);
    --sol-glow-2: rgba(244, 63, 94, .12);
    --sol-dot: rgba(139, 92, 246, .09);
}

.sol-hero--selfbuilt {
    --sol-primary: #1a74ff;
    --sol-accent: #0ea5e9;
    --sol-bg: #f0f6ff;
    --sol-bg-2: #fbfdff;
    --sol-glow: rgba(60, 140, 255, .28);
    --sol-glow-2: rgba(14, 165, 233, .14);
    --sol-dot: rgba(26, 116, 255, .09);
}

.sol-hero--dev {
    --sol-primary: #0891b2;
    --sol-accent: #22c55e;
    --sol-bg: #f0fbfd;
    --sol-bg-2: #fbffff;
    --sol-glow: rgba(50, 180, 200, .26);
    --sol-glow-2: rgba(34, 197, 94, .14);
    --sol-dot: rgba(8, 145, 178, .09);
}

.sol-hero--dajian {
    --sol-primary: #f59e0b;
    --sol-accent: #f97316;
    --sol-bg: #fff9ec;
    --sol-bg-2: #fffdf8;
    --sol-glow: rgba(255, 190, 60, .30);
    --sol-glow-2: rgba(249, 115, 22, .12);
    --sol-dot: rgba(245, 158, 11, .11);
}

.sol-hero--psychology {
    --sol-primary: #6d5ef6;
    --sol-accent: #14b8a6;
    --sol-bg: #f5f3ff;
    --sol-bg-2: #fdfcff;
    --sol-glow: rgba(120, 100, 250, .26);
    --sol-glow-2: rgba(20, 184, 166, .13);
    --sol-dot: rgba(109, 94, 246, .09);
}

.sol-hero--health {
    --sol-primary: #0d9488;
    --sol-accent: #22c55e;
    --sol-bg: #effbf8;
    --sol-bg-2: #fcfffe;
    --sol-glow: rgba(50, 190, 160, .28);
    --sol-glow-2: rgba(34, 197, 94, .13);
    --sol-dot: rgba(13, 148, 136, .09);
}

.sol-hero--guoxue {
    --sol-primary: #3f7a5e;
    --sol-accent: #b08968;
    --sol-bg: #f6f8f2;
    --sol-bg-2: #fdfefb;
    --sol-glow: rgba(90, 140, 110, .24);
    --sol-glow-2: rgba(176, 137, 104, .16);
    --sol-dot: rgba(63, 122, 94, .09);
}

/* ---------- 响应式 ---------- */
@media (max-width: 991.98px) {
    .sol-hero {
        padding: 58px 0 66px;
    }

    .sol-hero__inner {
        grid-template-columns: minmax(0, 1fr);
        gap: 18px;
    }

    .sol-hero__copy {
        max-width: 640px;
        margin: 0 auto;
        text-align: center;
    }

    .sol-hero__title {
        font-size: clamp(28px, 5.4vw, 40px);
    }

    .sol-hero__sub {
        margin-top: 18px;
    }

    .sol-hero__actions .d-flex,
    .sol-hero__stats {
        justify-content: center !important;
    }

    .sol-hero__actions {
        margin-top: 26px;
    }

    .sol-hero__art {
        max-width: 460px;
        margin: 6px auto 0;
    }
}

@media (max-width: 575.98px) {
    .sol-hero {
        padding: 44px 0 52px;
    }

    .sol-hero__inner {
        padding: 0 16px;
    }

    .sol-hero__kicker {
        font-size: 12px;
        padding: 6px 11px;
        margin-bottom: 14px;
    }

    .sol-hero__title {
        font-size: 27px;
        letter-spacing: -.2px;
    }

    .sol-hero__sub {
        font-size: 14.5px;
        line-height: 1.75;
    }

    .sol-hero__art {
        max-width: 340px;
    }

    .sol-hero__stat {
        font-size: 12px;
        padding: 6px 10px;
    }
}