/* ============================================================
   Kaelis Forge — index_style.css
   范围:首页 hero / features / heroes / boss / cta
   ============================================================ */

/* ========== Hero ========== */
.sk-hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 80px 20px 60px;
    background: #0c0907;
}

/* 背景图 */
.sk-hero__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}
.sk-hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    animation: kf-hero-bg-in 1.4s ease-out;
    transform-origin: center;
}
@keyframes kf-hero-bg-in {
    from { transform: scale(1.12); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}

/* 背景遮罩:确保文字可读 */
.sk-hero__overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        radial-gradient(ellipse 70% 60% at 50% 30%, rgba(232, 100, 42, 0.18), transparent 70%),
        radial-gradient(ellipse 90% 50% at 50% 100%, rgba(139, 26, 26, 0.30), transparent 70%),
        linear-gradient(180deg, rgba(12, 9, 7, 0.55) 0%, rgba(12, 9, 7, 0.65) 50%, rgba(10, 7, 5, 0.92) 100%);
    pointer-events: none;
}

/* 底部斜切 */
.sk-hero::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0; right: 0;
    height: 80px;
    background: linear-gradient(180deg, transparent, #0a0705 90%);
    pointer-events: none;
    z-index: 3;
}

/* 余烬粒子 */
.sk-embers {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 2;
}
.sk-ember {
    position: absolute;
    bottom: 0;
    width: 4px;
    height: 4px;
    background: var(--kf-ember-hi);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--kf-ember), 0 0 20px var(--kf-ember-hi);
    opacity: 0;
    animation: kf-ember-rise linear infinite;
}
@keyframes kf-ember-rise {
    0%   { transform: translateY(0) scale(1); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 0.8; }
    100% { transform: translateY(-100vh) scale(0.2); opacity: 0; }
}

.sk-hero__inner {
    position: relative;
    z-index: 4;
    max-width: 880px;
}



.sk-hero__title {
    font-family: 'kf-display', 'Cinzel', serif;
    font-size: clamp(55px, 5vw, 140px);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: 0.02em;
    margin: 0 0 24px;
    color: var(--kf-text);
    text-shadow:
        0 0 30px rgba(232, 100, 42, 0.35),
        0 0 80px rgba(232, 100, 42, 0.15);
}
.sk-hero__title span {
    display: block;
    background: linear-gradient(180deg, #f0c068 0%, #e8642a 60%, #a8421a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 20px rgba(232, 100, 42, 0.45));
}

.sk-hero__desc {
    font-size: clamp(14px, 2vw, 17px);
    line-height: 1.75;
    color: var(--kf-text-dim);
    max-width: 660px;
    margin: 0 auto 36px;
}

.sk-hero__cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

/* 滚动提示 */
.sk-scroll-hint {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--kf-text-mute);
    font-size: 22px;
    z-index: 2;
    animation: kf-bounce 2s ease-in-out infinite;
}
@keyframes kf-bounce {
    0%, 100% { transform: translate(-50%, 0); opacity: 0.4; }
    50%      { transform: translate(-50%, 8px); opacity: 1; }
}

/* ========== Section 公共 ========== */
.sk-section {
    padding: clamp(56px, 9vw, 100px) 0;
    position: relative;
}
.sk-section + .sk-section { border-top: 1px solid var(--kf-border); }

.sk-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto clamp(36px, 5vw, 56px);
    padding: 0 20px;
}
.sk-head__eyebrow {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(232, 100, 42, 0.08);
    border: 1px solid var(--kf-border-hi);
    border-radius: 999px;
    color: var(--kf-gold-hi);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.sk-head__title {
    font-family: 'kf-display', serif;
    font-size: clamp(35px, 1vw, 44px);
    line-height: 1.15;
    margin: 0 0 14px;
    color: var(--kf-text);
}
.sk-head__sub {
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.7;
    color: var(--kf-text-dim);
    margin: 0;
}

/* ========== Features 网格 ========== */
.sk-features {
    background:
        radial-gradient(ellipse 60% 40% at 50% 0%, rgba(232, 100, 42, 0.05), transparent 60%),
        var(--kf-bg);
}
.sk-features__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(14px, 3vw, 28px);
}

.sk-feature {
    position: relative;
    padding: 32px 26px 28px;
    background: linear-gradient(180deg, var(--kf-surface) 0%, var(--kf-bg-soft) 100%);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius);
    overflow: hidden;
    transition: all 0.3s ease;
}
.sk-feature::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--kf-ember), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.sk-feature:hover {
    transform: translateY(-4px);
    border-color: var(--kf-border-hi);
    box-shadow: var(--kf-shadow);
}
.sk-feature:hover::before { opacity: 1; }

.sk-feature__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(232, 100, 42, 0.18), rgba(232, 100, 42, 0));
    border: 1px solid var(--kf-border-hi);
    border-radius: 12px;
    margin-bottom: 18px;
}
.sk-feature__icon i {
    font-size: 26px;
    color: var(--kf-ember-hi);
    filter: drop-shadow(0 0 8px rgba(232, 100, 42, 0.4));
}

.sk-feature__num {
    position: absolute;
    top: 18px;
    right: 22px;
    font-family: 'kf-display', serif;
    font-size: 42px;
    color: var(--kf-gold-dim);
    opacity: 0.4;
    line-height: 1;
}

.sk-feature h3 {
    font-family: 'kf-display', serif;
    font-size: 19px;
    margin: 0 0 10px;
    color: var(--kf-gold-hi);
}
.sk-feature p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--kf-text-dim);
    margin: 0;
}

/* ========== Heroes ========== */
.sk-heroes {
    background:
        linear-gradient(180deg, var(--kf-bg) 0%, #0a0705 100%);
}
.sk-heroes__list {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(14px, 3vw, 28px);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(18px, 2.5vw, 28px);
}

/* 卡片:纵向布局,portrait 在上 info 在下 */
.sk-hero-card {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--kf-surface) 0%, var(--kf-bg-soft) 100%);
    border: 1px solid var(--kf-border);
    border-radius: var(--kf-radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}
.sk-hero-card:hover {
    border-color: var(--kf-border-hi);
    box-shadow: var(--kf-shadow);
    transform: translateY(-4px);
}

.sk-hero-card__portrait {
    aspect-ratio: 1;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--kf-border);
}
.sk-hero-card__portrait::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(180deg, transparent 50%, var(--kf-bg-soft) 100%);
    pointer-events: none;
}
.sk-hero-card__portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.sk-hero-card:hover .sk-hero-card__portrait img {
    transform: scale(1.08);
}

/* 各英雄色调叠加 */
.sk-hero-card__portrait--knight::before,
.sk-hero-card__portrait--mage::before,
.sk-hero-card__portrait--ranger::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    mix-blend-mode: multiply;
}
.sk-hero-card__portrait--knight::before {
    background: radial-gradient(circle, transparent 40%, rgba(212, 160, 74, 0.30) 100%);
}
.sk-hero-card__portrait--mage::before {
    background: radial-gradient(circle, transparent 40%, rgba(232, 100, 42, 0.35) 100%);
}
.sk-hero-card__portrait--ranger::before {
    background: radial-gradient(circle, transparent 40%, rgba(106, 184, 106, 0.25) 100%);
}

.sk-hero-card__info {
    padding: clamp(16px, 2vw, 22px);
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sk-hero-card__role {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(232, 100, 42, 0.10);
    border: 1px solid var(--kf-border-hi);
    border-radius: 999px;
    color: var(--kf-gold-hi);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.sk-hero-card__name {
    font-family: 'kf-display', serif;
    font-size: clamp(15px, 0.2vw, 24px);
    margin: 0 0 6px;
    color: var(--kf-text);
}

.sk-hero-card__talent {
    display: inline-block;
    color: var(--kf-gold);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}
.sk-hero-card__talent i { color: var(--kf-ember-hi); margin-right: 4px; }

.sk-hero-card__desc {
    color: var(--kf-text-dim);
    font-size: 13px;
    line-height: 1.65;
    margin: 0;
}

/* ========== BOSS ========== */
.sk-boss {
    position: relative;
    padding: clamp(80px, 7vw, 80px) 0;
    background:
        radial-gradient(ellipse 60% 70% at 30% 50%, rgba(139, 26, 26, 0.20), transparent 70%),
        radial-gradient(ellipse 50% 60% at 80% 50%, rgba(232, 100, 42, 0.12), transparent 70%),
        linear-gradient(180deg, #0a0705 0%, #1a0c06 50%, #0a0705 100%);
    border-top: 1px solid var(--kf-border);

}
.sk-boss__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 40px);
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: clamp(28px, 5vw, 56px);
    align-items: center;
}

.sk-boss__art {
    position: relative;
    aspect-ratio: 4 / 3;
    border: 2px solid var(--kf-blood);
    border-radius: var(--kf-radius-lg);
    background: var(--kf-bg-soft);
    box-shadow: 0 0 60px rgba(139, 26, 26, 0.35), inset 0 0 40px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}
.sk-boss__art::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        radial-gradient(ellipse 70% 50% at 50% 50%, transparent 30%, rgba(139, 26, 26, 0.35) 100%),
        linear-gradient(180deg, rgba(12, 9, 7, 0.10) 0%, rgba(12, 9, 7, 0.55) 100%);
    pointer-events: none;
    mix-blend-mode: multiply;
}
.sk-boss__art::after {
    content: "";
    position: absolute;
    inset: 10px;
    z-index: 3;
    border: 1px dashed var(--kf-ember-dim);
    border-radius: calc(var(--kf-radius-lg) - 6px);
    opacity: 0.55;
    pointer-events: none;
}
.sk-boss__art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    animation: kf-boss-pulse 5s ease-in-out infinite;
}
@keyframes kf-boss-pulse {
    0%, 100% { transform: scale(1); filter: brightness(0.92); }
    50%      { transform: scale(1.04); filter: brightness(1.08); }
}

.sk-boss__tag {
    position: absolute;
    top: 18px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(139, 26, 26, 0.45);
    border: 1px solid var(--kf-blood);
    border-radius: 999px;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    white-space: nowrap;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.sk-boss__info h2 {
    font-family: 'kf-display', serif;
    font-size: clamp(28px, 2vw, 44px);
    margin: 0 0 16px;
    color: var(--kf-text);
    text-shadow: 0 0 20px rgba(139, 26, 26, 0.4);
}
.sk-boss__info p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--kf-text-dim);
    margin: 0 0 24px;
    max-width: 580px;
}

/* ========== CTA ========== */
.sk-cta {
    text-align: center;
    padding: clamp(60px, 9vw, 100px) 20px;
    background:
        radial-gradient(ellipse 70% 50% at 50% 50%, rgba(232, 100, 42, 0.10), transparent 70%),
        var(--kf-bg);
    position: relative;
}

@keyframes kf-xp-pulse {
    0%, 100% { width: 70%; }
    50%      { width: 75%; }
}


/* ========== 响应式 ========== */
@media (max-width: 900px) {
    .sk-features__grid { grid-template-columns: repeat(2, 1fr); }
    /* 英雄卡片:3 列 → 2 列 */
    .sk-heroes__list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    /* 英雄卡片:3 列 → 1 列 */
    .sk-heroes__list {
        grid-template-columns: 1fr;
        max-width: 420px;
    }

    .sk-boss__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .sk-boss__art {
        max-width: 480px;
        margin: 0 auto;
    }
    .sk-boss__info p { margin-left: auto; margin-right: auto; }
}

@media (max-width: 560px) {
    .sk-features__grid { grid-template-columns: 1fr; }
}

/* iOS safe-area 顶部 padding */
@supports (padding: env(safe-area-inset-top)) {
    .sk-hero { padding-top: calc(env(safe-area-inset-top) + 80px); }
}