/* 內頁共用 header（參考 pillars.php） */
.page {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 5% 0;
}

.banner {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    background:
        linear-gradient(180deg, rgba(9, 18, 31, 0.56) 0%, rgba(15, 28, 46, 0.72) 68%, rgba(15, 28, 46, 0.92) 100%),
        url("../img/isbg.jpg") center 42% / cover no-repeat;
    box-shadow: 0 24px 70px rgba(15, 28, 46, 0.14);
    overflow: hidden;
}
.banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 420px at 80% 18%, rgba(240, 214, 158, 0.14), rgba(240, 214, 158, 0) 60%),
        radial-gradient(700px 340px at 18% 30%, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0) 60%);
    pointer-events: none;
}
.banner::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: min(680px, 78vh);
    background: linear-gradient(180deg, rgba(15, 28, 46, 0) 0%, rgba(15, 28, 46, 0) 65%, rgba(15, 28, 46, 0.70) 92%, rgba(15, 28, 46, 0.96) 100%);
    pointer-events: none;
}
.banner-inner {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 72px max(24px, 5vw);
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 22px;
    align-items: end;
}
.banner .kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(240, 214, 158, 0.92);
    font-weight: 900;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 14px;
}
.banner .kicker .pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(240, 214, 158, 0.35);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 16px 40px rgba(15, 28, 46, 0.18);
}
.banner .kicker .meta {
    color: rgba(255, 255, 255, 0.68);
    font-weight: 800;
    letter-spacing: 0.6px;
}
.banner h1 {
    font-family: var(--font-serif, "Noto Serif TC", serif);
    color: #fff;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    letter-spacing: 2px;
    line-height: 1.15;
    text-shadow: 0 14px 40px rgba(0, 0, 0, 0.38);
    margin-bottom: 12px;
}
.banner h1 small {
    display: block;
    margin-top: 12px;
    font-family: var(--font-sans, "Noto Sans TC", sans-serif);
    font-size: clamp(1rem, 1.5vw, 1.22rem);
    color: rgba(240, 214, 158, 0.92);
    letter-spacing: 0.8px;
    line-height: 1.75;
    font-weight: 500;
}
.banner > .banner-inner > div > p,
.banner-lead {
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.95;
    font-weight: 650;
    max-width: 62ch;
}
.banner-actions {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.banner-btn {
    text-decoration: none;
    border-radius: 999px;
    padding: 12px 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 900;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid rgba(240, 214, 158, 0.42);
}
.banner-btn.primary {
    background: linear-gradient(180deg, rgba(240, 214, 158, 0.98), rgba(214, 178, 108, 0.98));
    color: var(--bg-dark, #0f1c2e);
}
.banner-btn.ghost {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    backdrop-filter: blur(6px);
}
.banner-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

.mantra {
    margin-top: 0;
    display: grid;
    gap: 10px;
}
.mantra .line {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(240, 214, 158, 0.22);
    border-radius: 16px;
    padding: 14px 14px;
    color: rgba(255, 255, 255, 0.86);
    box-shadow: 0 18px 45px rgba(15, 28, 46, 0.18);
    line-height: 1.75;
    font-size: 0.92rem;
}
.mantra strong {
    color: rgba(240, 214, 158, 0.95);
    letter-spacing: 1px;
}
.mantra a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 700;
}
.banner-aside {
    margin-top: 0;
}
.banner-inner--solo {
    grid-template-columns: 1fr;
    align-items: start;
}

/* 右側資訊面板（about / books / courses 等） */
.banner-panel {
    background: rgba(246, 239, 230, 0.92);
    border-radius: 18px;
    border: 1px solid rgba(240, 214, 158, 0.35);
    padding: 18px;
    box-shadow: 0 18px 45px rgba(15, 28, 46, 0.12);
}
.banner-panel .author-card {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 14px;
    align-items: center;
    margin-bottom: 14px;
    padding: 12px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(240, 214, 158, 0.22);
}
.banner-panel .author-avatar {
    width: 110px;
    height: 110px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(15, 28, 46, 0.92), rgba(20, 36, 59, 0.92));
    border: 1px solid rgba(240, 214, 158, 0.35);
    display: grid;
    place-items: center;
    color: rgba(240, 214, 158, 0.95);
    overflow: hidden;
}
.banner-panel .author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.banner-panel .author-name {
    font-family: var(--font-serif, "Noto Serif TC", serif);
    color: var(--bg-dark, #0f1c2e);
    font-size: 1.25rem;
    font-weight: 900;
    margin-bottom: 6px;
}
.banner-panel .author-meta {
    color: rgba(44, 62, 80, 0.78);
    font-weight: 700;
    line-height: 1.7;
    font-size: 0.95rem;
}
.banner-panel .panel-title {
    font-family: var(--font-serif, "Noto Serif TC", serif);
    color: var(--bg-dark, #0f1c2e);
    font-size: 1.2rem;
    margin-bottom: 10px;
}
.banner-panel .panel-list {
    list-style: none;
    display: grid;
    gap: 10px;
    color: rgba(44, 62, 80, 0.85);
    font-weight: 700;
    font-size: 0.95rem;
}
.banner-panel .panel-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.banner-panel .panel-list i {
    color: rgba(160, 124, 55, 0.95);
    margin-top: 4px;
}
.banner-panel .lead {
    color: rgba(44, 62, 80, 0.86);
    font-weight: 750;
    line-height: 1.85;
}
.banner-panel .lines {
    margin-top: 12px;
    display: grid;
    gap: 10px;
}
.banner-panel .line {
    border-radius: 16px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid rgba(240, 214, 158, 0.22);
    font-weight: 800;
    color: rgba(15, 28, 46, 0.88);
}
.banner-panel .line b {
    color: rgba(160, 124, 55, 0.92);
}
.banner-panel .line a {
    color: inherit;
}

@media (max-width: 992px) {
    .banner-inner {
        grid-template-columns: 1fr;
        padding: 56px max(18px, 5vw) 34px;
        align-items: start;
    }
    .page {
        padding: 28px 5% 0;
    }
    .banner-actions .banner-btn {
        width: 100%;
        justify-content: center;
    }
}