/* 青科未来 · 新前台主样式 */
@import url('portal-tokens.css');

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--qk-font);
    color: var(--qk-text);
    background: var(--qk-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

.qk-container {
    max-width: var(--qk-container);
    margin: 0 auto;
    padding: 0 24px;
}

.qk-container--wide { max-width: var(--qk-container-wide); }

/* ── Buttons ── */
.qk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--qk-transition);
    white-space: nowrap;
}

.qk-btn--primary {
    background: linear-gradient(135deg, var(--qk-accent) 0%, var(--qk-accent-dark) 100%);
    color: var(--qk-primary-dark);
    box-shadow: 0 4px 20px rgba(201, 162, 39, 0.35);
}
.qk-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(201, 162, 39, 0.45);
}

.qk-btn--outline {
    border: 2px solid rgba(255,255,255,0.8);
    color: #fff;
    background: transparent;
}
.qk-btn--outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
}

.qk-btn--ghost {
    color: var(--qk-text);
    background: transparent;
}
.qk-btn--ghost:hover { color: var(--qk-accent); }

.qk-btn--dark {
    background: var(--qk-primary);
    color: #fff;
}
.qk-btn--dark:hover { background: var(--qk-primary-light); }

.qk-btn--sm { padding: 10px 22px; font-size: 14px; }
.qk-btn--lg { padding: 18px 40px; font-size: 16px; }

/* ── Header ── */
.qk-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--qk-header-h);
    transition: var(--qk-transition);
}

.qk-header.is-scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--qk-border), 0 8px 24px rgba(11, 45, 74, 0.06);
}

body.qk-no-hero .qk-header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--qk-border), 0 8px 24px rgba(11, 45, 74, 0.06);
}

.qk-header__inner {
    max-width: var(--qk-container-wide);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 32px;
}

.qk-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.qk-logo__mark {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    background: transparent;
    border: 1px solid transparent;
    transition: var(--qk-transition);
}

.qk-header.is-scrolled .qk-logo__mark {
    background: linear-gradient(145deg, var(--qk-primary-dark) 0%, var(--qk-primary) 55%, var(--qk-primary-light) 100%);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 14px rgba(11, 45, 74, 0.18);
}

.qk-logo__img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    transition: var(--qk-transition);
}

.qk-header.is-scrolled .qk-logo__img {
    width: 34px;
    height: 34px;
}

.qk-logo__text { display: flex; flex-direction: column; }

.qk-logo__name {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.02em;
    transition: var(--qk-transition);
}
.qk-header.is-scrolled .qk-logo__name {
    color: var(--qk-primary-dark);
}

.qk-logo__sub {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.75);
    transition: var(--qk-transition);
}
.qk-header.is-scrolled .qk-logo__sub {
    color: var(--qk-text-muted);
}

.qk-nav { flex: 1; }

.qk-nav__list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.qk-nav__list > li > a,
.qk-nav__dropdown > a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    border-radius: var(--qk-radius-sm);
    transition: var(--qk-transition);
}
.qk-header.is-scrolled .qk-nav__list > li > a,
.qk-header.is-scrolled .qk-nav__dropdown > a {
    color: var(--qk-text);
}

.qk-header.is-scrolled .qk-nav__list > li > a:hover,
.qk-header.is-scrolled .qk-nav__dropdown > a:hover {
    color: var(--qk-teal);
    background: var(--qk-bg-alt);
}

.qk-header.is-scrolled .qk-nav__list a.is-active,
.qk-header.is-scrolled .qk-nav__dropdown > a.is-active {
    color: var(--qk-primary) !important;
    background: rgba(26, 122, 140, 0.08);
}

.qk-nav__list a:hover,
.qk-nav__list a.is-active { color: var(--qk-accent) !important; }

/* 无 Hero 的内页（课题详情、文章等）：顶栏始终使用实心样式，避免白字与浅色背景冲突 */
body.qk-no-hero .qk-nav__list > li > a,
body.qk-no-hero .qk-nav__dropdown > a {
    color: var(--qk-text);
}

body.qk-no-hero .qk-nav__list > li > a:hover,
body.qk-no-hero .qk-nav__dropdown > a:hover {
    color: var(--qk-teal);
    background: var(--qk-bg-alt);
}

body.qk-no-hero .qk-nav__list a.is-active,
body.qk-no-hero .qk-nav__dropdown > a.is-active {
    color: var(--qk-primary) !important;
    background: rgba(26, 122, 140, 0.08);
}

body.qk-no-hero .qk-logo__name { color: var(--qk-primary-dark); }
body.qk-no-hero .qk-logo__sub { color: var(--qk-text-muted); }

body.qk-no-hero .qk-logo__mark {
    background: linear-gradient(145deg, var(--qk-primary-dark) 0%, var(--qk-primary) 55%, var(--qk-primary-light) 100%);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 14px rgba(11, 45, 74, 0.18);
}

body.qk-no-hero .qk-logo__img {
    width: 34px;
    height: 34px;
}

body.qk-no-hero .qk-header__user-meta { color: var(--qk-text-secondary); }

body.qk-no-hero .qk-header .qk-btn--ghost {
    color: var(--qk-primary);
    background: var(--qk-bg);
    border-color: var(--qk-border);
}

body.qk-no-hero .qk-header .qk-btn--ghost:hover {
    color: var(--qk-teal);
    border-color: rgba(26, 122, 140, 0.35);
    background: var(--qk-bg-alt);
}

body.qk-no-hero .qk-menu-toggle span { background: var(--qk-primary); }

.qk-nav__dropdown { position: relative; }

.qk-nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #fff;
    border-radius: var(--qk-radius);
    box-shadow: var(--qk-shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--qk-transition);
}
.qk-nav__dropdown:hover .qk-nav__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.qk-nav__menu a {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--qk-text-secondary) !important;
    border-radius: var(--qk-radius-sm);
}
.qk-nav__menu a:hover { background: var(--qk-bg); color: var(--qk-primary) !important; }

.qk-header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.qk-header__user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.qk-header__user-meta {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.92);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.qk-header.is-scrolled .qk-header__user-meta {
    color: var(--qk-text-secondary);
}

.qk-sidebar-card .qk-enroll-btn {
    width: 100%;
    margin-top: 20px;
}

.qk-header .qk-btn--ghost {
    color: rgba(255, 255, 255, 0.92);
    border: 1px solid transparent;
}
.qk-header.is-scrolled .qk-btn--ghost {
    color: var(--qk-primary);
    background: var(--qk-bg);
    border-color: var(--qk-border);
}
.qk-header.is-scrolled .qk-btn--ghost:hover {
    color: var(--qk-teal);
    border-color: rgba(26, 122, 140, 0.35);
    background: var(--qk-bg-alt);
}

.qk-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.qk-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    transition: var(--qk-transition);
}
.qk-header.is-scrolled .qk-menu-toggle span { background: var(--qk-primary); }

/* ── Hero Carousel ── */
.qk-hero {
    position: relative;
    height: 100vh;
    min-height: 640px;
    max-height: 900px;
    overflow: hidden;
}

.qk-hero__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease, visibility 1s;
}
.qk-hero__slide.is-active { opacity: 1; visibility: visible; }

.qk-hero__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}
.qk-hero__slide.is-active .qk-hero__bg { transform: scale(1); }

.qk-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg,
        rgba(6, 30, 51, 0.88) 0%,
        rgba(11, 45, 74, 0.65) 45%,
        rgba(11, 45, 74, 0.35) 100%);
}

.qk-hero__content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
    max-width: var(--qk-container-wide);
    margin: 0 auto;
    padding: calc(var(--qk-header-h) + 40px) 48px 80px;
}

.qk-hero__text { max-width: 680px; }

.qk-hero__badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(201, 162, 39, 0.2);
    border: 1px solid rgba(201, 162, 39, 0.4);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--qk-accent-light);
    letter-spacing: 0.05em;
    margin-bottom: 24px;
    animation: qkFadeUp 0.8s ease both;
}

.qk-hero__title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    animation: qkFadeUp 0.8s 0.1s ease both;
}

.qk-hero__desc {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255,255,255,0.85);
    line-height: 1.7;
    margin-bottom: 36px;
    animation: qkFadeUp 0.8s 0.2s ease both;
}

.qk-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    animation: qkFadeUp 0.8s 0.3s ease both;
}

.qk-hero__indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.qk-hero__dot {
    width: 40px;
    height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,0.3);
    transition: var(--qk-transition);
    cursor: pointer;
}
.qk-hero__dot.is-active {
    background: var(--qk-accent);
    width: 56px;
}

.qk-hero__arrows {
    position: absolute;
    bottom: 40px;
    right: 48px;
    display: flex;
    gap: 12px;
    z-index: 10;
}

.qk-hero__arrow {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--qk-transition);
}
.qk-hero__arrow:hover {
    background: var(--qk-accent);
    border-color: var(--qk-accent);
    color: var(--qk-primary-dark);
}

/* ── Stats Bar ── */
.qk-stats {
    background: var(--qk-primary);
    padding: 48px 0;
    position: relative;
    overflow: hidden;
}

.qk-stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/bg-pattern-navy.png') center/cover;
    opacity: 0.15;
}

.qk-stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.qk-stat { text-align: center; }

.qk-stat__num {
    font-size: clamp(36px, 4vw, 52px);
    font-weight: 800;
    color: var(--qk-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.qk-stat__num span { font-size: 0.6em; }

.qk-stat__label {
    font-size: 15px;
    color: rgba(255,255,255,0.75);
    font-weight: 500;
}

/* ── Section Common ── */
.qk-section {
    padding: 100px 0;
}

.qk-section--alt { background: var(--qk-surface); }
.qk-section--dark {
    background: var(--qk-primary);
    color: #fff;
}

.qk-section__header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.qk-section__eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--qk-teal);
    margin-bottom: 16px;
}

.qk-section--dark .qk-section__eyebrow { color: var(--qk-accent); }

.qk-section__title {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.qk-section__desc {
    font-size: 17px;
    color: var(--qk-text-muted);
    line-height: 1.7;
}

.qk-section--dark .qk-section__desc { color: rgba(255,255,255,0.7); }

/* ── Mission Block ── */
.qk-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.qk-mission__visual {
    position: relative;
    border-radius: var(--qk-radius-xl);
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--qk-shadow-lg);
}

.qk-mission__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qk-mission__visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 50%, rgba(11,45,74,0.3));
}

.qk-mission__quote {
    font-size: 22px;
    font-weight: 600;
    color: var(--qk-primary);
    line-height: 1.5;
    margin-bottom: 24px;
    border-left: 4px solid var(--qk-accent);
    padding-left: 24px;
}

.qk-mission__text {
    font-size: 16px;
    color: var(--qk-text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.qk-mission__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.qk-tag {
    padding: 8px 18px;
    background: var(--qk-bg);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--qk-primary);
}

/* ── Partners ── */
.qk-partners {
    padding: 60px 0;
    background: var(--qk-surface);
    border-top: 1px solid var(--qk-border-light);
    border-bottom: 1px solid var(--qk-border-light);
}

.qk-partners__title {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--qk-text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 36px;
}

.qk-partners__grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 48px;
}

.qk-partner {
    font-size: 18px;
    font-weight: 700;
    color: var(--qk-text-muted);
    opacity: 0.6;
    transition: var(--qk-transition);
    white-space: nowrap;
}
.qk-partner:hover { opacity: 1; color: var(--qk-primary); }

/* ── How Why Who ── */
.qk-hww {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.qk-hww__card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--qk-border-light);
    transition: var(--qk-transition);
    position: relative;
    overflow: hidden;
}

.qk-hww__card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--qk-teal), var(--qk-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--qk-transition);
}
.qk-hww__card:hover {
    transform: translateY(-6px);
    box-shadow: var(--qk-shadow);
}
.qk-hww__card:hover::before { transform: scaleX(1); }

.qk-hww__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--qk-radius);
    background: linear-gradient(135deg, var(--qk-primary) 0%, var(--qk-teal) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 24px;
}

.qk-hww__card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.qk-hww__card p {
    font-size: 15px;
    color: var(--qk-text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.qk-hww__link {
    font-size: 14px;
    font-weight: 600;
    color: var(--qk-teal);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.qk-hww__link:hover { color: var(--qk-accent-dark); }

/* ── Benefits Grid ── */
.qk-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.qk-benefit {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--qk-radius-lg);
    padding: 36px 28px;
    transition: var(--qk-transition);
}
.qk-benefit:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-4px);
}

.qk-benefit__icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(201, 162, 39, 0.15);
    color: var(--qk-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.qk-benefit h3 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.qk-benefit p {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
}

/* ── Projects ── */
.qk-projects__tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 48px;
}

.qk-tab {
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 600;
    color: var(--qk-text-muted);
    border-radius: 50px;
    border: 1px solid var(--qk-border);
    background: var(--qk-surface);
    transition: var(--qk-transition);
}
.qk-tab:hover { border-color: var(--qk-teal); color: var(--qk-teal); }
.qk-tab.is-active {
    background: var(--qk-primary);
    color: #fff;
    border-color: var(--qk-primary);
}

.qk-projects__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.qk-project-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    overflow: hidden;
    border: 1px solid var(--qk-border-light);
    transition: var(--qk-transition);
}
.qk-project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--qk-shadow);
}

.qk-project-card__img {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.qk-project-card__cat {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: rgba(11,45,74,0.85);
    color: var(--qk-accent);
    font-size: 12px;
    font-weight: 700;
    border-radius: 50px;
}

.qk-project-card__body { padding: 24px; }

.qk-project-card__body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.qk-project-card__body p {
    font-size: 14px;
    color: var(--qk-text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.qk-project-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.qk-badge {
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
    background: var(--qk-bg);
    color: var(--qk-text-secondary);
}

.qk-project-card__link {
    font-size: 14px;
    font-weight: 600;
    color: var(--qk-teal);
}
.qk-project-card__link:hover { color: var(--qk-accent-dark); }

.qk-section__footer {
    text-align: center;
    margin-top: 48px;
}

/* ── Blog & Media Cards ── */
.qk-cards-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.qk-article-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    overflow: hidden;
    border: 1px solid var(--qk-border-light);
    transition: var(--qk-transition);
}
.qk-article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qk-shadow);
}

.qk-article-card__img {
    height: 180px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.qk-article-card__body { padding: 24px; }

.qk-article-card__date {
    font-size: 12px;
    color: var(--qk-text-muted);
    margin-bottom: 8px;
}

.qk-article-card h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
}

.qk-article-card p {
    font-size: 14px;
    color: var(--qk-text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.qk-article-card__link {
    font-size: 14px;
    font-weight: 600;
    color: var(--qk-teal);
}

/* ── Youth Spotlight (荣誉墙) ── */
.qk-spotlight-intro {
    max-width: 760px;
    margin: 0 auto 48px;
    text-align: center;
    font-size: 17px;
    color: var(--qk-text-secondary);
    line-height: 1.85;
}

.qk-spotlight-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.qk-spotlight-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    overflow: hidden;
    border: 1px solid var(--qk-border-light);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.qk-spotlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qk-shadow-md);
}

.qk-spotlight-card__media {
    height: 220px;
    background-size: cover;
    background-position: center top;
    position: relative;
}

.qk-spotlight-card__field {
    position: absolute;
    left: 16px;
    bottom: 16px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: rgba(6, 30, 51, 0.72);
    backdrop-filter: blur(4px);
}

.qk-spotlight-card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.qk-spotlight-card__award {
    font-size: 13px;
    font-weight: 600;
    color: var(--qk-gold);
    margin-bottom: 10px;
}

.qk-spotlight-card h3 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 6px;
}

.qk-spotlight-card__meta {
    font-size: 14px;
    color: var(--qk-text-muted);
    margin-bottom: 14px;
}

.qk-spotlight-card__intro {
    font-size: 14px;
    color: var(--qk-text-secondary);
    line-height: 1.75;
    margin-bottom: 14px;
    flex: 1;
}

.qk-spotlight-card__highlight {
    font-size: 13px;
    color: var(--qk-text);
    line-height: 1.65;
    padding: 12px 14px;
    background: var(--qk-bg-alt);
    border-radius: var(--qk-radius);
    border-left: 3px solid var(--qk-teal);
}

/* ── Expert / Mentor Cards ── */
.qk-experts-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.qk-experts-hero img {
    border-radius: var(--qk-radius-xl);
    box-shadow: var(--qk-shadow-lg);
    width: 100%;
    height: auto;
    object-fit: cover;
}

.qk-expert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.qk-expert-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    overflow: hidden;
    border: 1px solid var(--qk-border-light);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.qk-expert-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--qk-shadow-md);
}

.qk-expert-card__photo {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--qk-primary), var(--qk-teal));
}

.qk-expert-card__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    transition: transform 0.35s ease;
}

.qk-expert-card:hover .qk-expert-card__photo img {
    transform: scale(1.04);
}

.qk-expert-card__photo::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(6, 30, 51, 0.55) 0%, transparent 55%);
    pointer-events: none;
}

.qk-expert-card__org {
    position: absolute;
    left: 14px;
    bottom: 12px;
    right: 14px;
    z-index: 1;
    font-size: 12px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.4;
}

.qk-expert-card__body {
    padding: 20px 20px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.qk-expert-card h3 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 4px;
    color: var(--qk-text);
}

.qk-expert-card__role {
    font-size: 13px;
    font-weight: 600;
    color: var(--qk-teal);
    margin-bottom: 10px;
}

.qk-expert-card p {
    font-size: 13px;
    color: var(--qk-text-muted);
    line-height: 1.65;
    flex: 1;
    margin: 0;
}

.qk-expert-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 14px;
}

/* ── Testimonials ── */
.qk-testimonials {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.qk-testimonial {
    text-align: center;
    display: none;
}
.qk-testimonial.is-active { display: block; }

.qk-testimonial__quote {
    font-size: clamp(18px, 2.5vw, 24px);
    font-weight: 500;
    color: var(--qk-text);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 32px;
    position: relative;
}
.qk-testimonial__quote::before {
    content: '\201C';
    font-size: 64px;
    color: var(--qk-accent);
    opacity: 0.3;
    position: absolute;
    top: -20px;
    left: -10px;
    font-style: normal;
}

.qk-testimonial__author {
    font-size: 16px;
    font-weight: 700;
    color: var(--qk-primary);
}

.qk-testimonial__role {
    font-size: 14px;
    color: var(--qk-text-muted);
    margin-top: 4px;
}

.qk-testimonial__nav {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.qk-testimonial__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--qk-border);
    cursor: pointer;
    transition: var(--qk-transition);
}
.qk-testimonial__dot.is-active {
    background: var(--qk-accent);
    transform: scale(1.2);
}

/* ── Audience Cards ── */
.qk-audience {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.qk-audience__card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--qk-border-light);
    text-align: center;
    transition: var(--qk-transition);
}
.qk-audience__card:hover {
    border-color: var(--qk-accent);
    box-shadow: var(--qk-shadow-glow);
}

.qk-audience__card--featured {
    background: linear-gradient(160deg, var(--qk-primary) 0%, var(--qk-primary-light) 100%);
    border: none;
    color: #fff;
}
.qk-audience__card--featured p { color: rgba(255,255,255,0.75); }
.qk-audience__card--featured h3 { color: #fff; }

.qk-audience__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--qk-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--qk-primary);
}
.qk-audience__card--featured .qk-audience__icon {
    background: rgba(201,162,39,0.2);
    color: var(--qk-accent);
}

.qk-audience__card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.qk-audience__card p {
    font-size: 14px;
    color: var(--qk-text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.qk-audience__card ul {
    text-align: left;
    margin-bottom: 28px;
}

.qk-audience__card li {
    font-size: 14px;
    color: var(--qk-text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}
.qk-audience__card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--qk-accent);
}
.qk-audience__card--featured li { color: rgba(255,255,255,0.85); }

/* ── CTA / Contact ── */
.qk-cta {
    background: linear-gradient(135deg, var(--qk-primary) 0%, var(--qk-teal) 100%);
    border-radius: var(--qk-radius-xl);
    padding: 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.qk-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/bg-pattern-navy.png') center/cover;
    opacity: 0.1;
}

.qk-cta > * { position: relative; z-index: 1; }

.qk-cta h2 {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.qk-cta p {
    font-size: 16px;
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
}

.qk-form {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--qk-radius-lg);
    padding: 32px;
}

.qk-form__group { margin-bottom: 16px; }

.qk-form__label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    margin-bottom: 6px;
}

.qk-form__input,
.qk-form__select,
.qk-form__textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--qk-radius-sm);
    background: rgba(255,255,255,0.95);
    color: var(--qk-text);
    transition: var(--qk-transition);
}
.qk-form__input:focus,
.qk-form__select:focus,
.qk-form__textarea:focus {
    outline: none;
    border-color: var(--qk-accent);
    box-shadow: 0 0 0 3px rgba(201,162,39,0.2);
}

.qk-form__textarea { min-height: 100px; resize: vertical; }

.qk-form__submit { width: 100%; margin-top: 8px; }

/* ── Footer ── */
.qk-footer {
    background: var(--qk-primary-dark);
    color: rgba(255,255,255,0.75);
    padding: 80px 0 0;
}

.qk-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.qk-footer__logo {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.qk-footer__desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.65);
}

.qk-footer__tagline {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 22px 0 20px;
    max-width: 340px;
}

.qk-footer__tagline-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 162, 39, 0.5) 50%, transparent);
}

.qk-footer__tagline-text {
    flex-shrink: 0;
    font-family: var(--qk-font-display);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--qk-accent);
    text-shadow: 0 0 28px rgba(201, 162, 39, 0.3);
    white-space: nowrap;
}

.qk-footer__platform {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}
.qk-footer__platform a {
    color: var(--qk-accent);
}
.qk-footer__platform a:hover { text-decoration: underline; }

.qk-footer__col h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.qk-footer__col a,
.qk-footer__col p {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 10px;
    transition: var(--qk-transition);
}
.qk-footer__col a:hover { color: var(--qk-accent); }

.qk-footer__cta {
    display: inline-block;
    margin-top: 8px;
    padding: 10px 20px;
    background: var(--qk-accent);
    color: var(--qk-primary-dark) !important;
    border-radius: 50px;
    font-weight: 600;
}

.qk-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.qk-footer__links {
    display: flex;
    gap: 24px;
}
.qk-footer__links a {
    color: rgba(255,255,255,0.4);
    transition: var(--qk-transition);
}
.qk-footer__links a:hover { color: var(--qk-accent); }

/* ── Sub-page Hero ── */
.qk-page-hero {
    padding: calc(var(--qk-header-h) + 80px) 0 80px;
    background: linear-gradient(135deg, var(--qk-primary) 0%, var(--qk-teal) 100%);
    position: relative;
    overflow: hidden;
}

.qk-page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/bg-pattern-navy.png') center/cover;
    opacity: 0.12;
}

.qk-page-hero .qk-container { position: relative; }

.qk-page-hero h1 {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.qk-page-hero p {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
    max-width: 640px;
    line-height: 1.7;
}

/* ── Reveal Animation ── */
.qk-reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.qk-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes qkFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .qk-mission { grid-template-columns: 1fr; }
    .qk-hww { grid-template-columns: 1fr; }
    .qk-benefits { grid-template-columns: repeat(2, 1fr); }
    .qk-projects__grid { grid-template-columns: repeat(2, 1fr); }
    .qk-cards-row { grid-template-columns: repeat(2, 1fr); }
    .qk-audience { grid-template-columns: repeat(2, 1fr); }
    .qk-cta { grid-template-columns: 1fr; padding: 48px 32px; }
    .qk-footer__grid { grid-template-columns: 1fr 1fr; }
    .qk-stats__grid { grid-template-columns: repeat(2, 1fr); }
    .qk-spotlight-grid { grid-template-columns: repeat(2, 1fr); }
    .qk-experts-hero { grid-template-columns: 1fr; }
    .qk-expert-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .qk-nav {
        position: fixed;
        top: var(--qk-header-h);
        left: 0; right: 0; bottom: 0;
        background: #fff;
        padding: 24px;
        transform: translateX(100%);
        transition: var(--qk-transition);
        overflow-y: auto;
    }
    .qk-nav.is-open { transform: translateX(0); }

    .qk-nav__list {
        flex-direction: column;
        align-items: stretch;
    }
    .qk-nav__list > li > a,
    .qk-nav__dropdown > a {
        color: var(--qk-text) !important;
        padding: 14px 0;
        font-size: 16px;
    }
    .qk-nav__menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 16px;
        display: none;
    }
    .qk-nav__dropdown.is-open .qk-nav__menu { display: block; }

    .qk-menu-toggle { display: flex; }
    .qk-header__actions .qk-btn--ghost { display: none; }

    .qk-hero__content { padding: calc(var(--qk-header-h) + 24px) 24px 100px; }
    .qk-hero__arrows { display: none; }

    .qk-benefits,
    .qk-projects__grid,
    .qk-cards-row,
    .qk-spotlight-grid,
    .qk-expert-grid { grid-template-columns: 1fr; }

    .qk-audience { grid-template-columns: 1fr; }

    .qk-footer__grid { grid-template-columns: 1fr; }
    .qk-footer__bottom { flex-direction: column; gap: 16px; text-align: center; }
    .qk-footer__tagline { max-width: 100%; }
    .qk-footer__tagline-text { font-size: 15px; letter-spacing: 0.14em; }

    .qk-newsletter-field {
        flex-direction: column;
        align-items: stretch;
        padding: 8px;
        border-radius: var(--qk-radius-lg);
        gap: 8px;
    }

    .qk-newsletter-submit {
        width: 100%;
        padding: 13px 18px;
    }

    .qk-section { padding: 64px 0; }
}

.qk-tiers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: -60px;
    position: relative;
    z-index: 2;
}

/* ── FAQ ── */
.qk-faq { max-width: 800px; margin: 0 auto; }
.qk-faq__item { background: var(--qk-surface); border-radius: var(--qk-radius); margin-bottom: 12px; border: 1px solid var(--qk-border-light); overflow: hidden; }
.qk-faq__q { padding: 20px 24px; font-size: 16px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.qk-faq__q:hover { color: var(--qk-teal); }
.qk-faq__a { padding: 0 24px 20px; font-size: 15px; color: var(--qk-text-muted); line-height: 1.7; display: none; }
.qk-faq__item.is-open .qk-faq__a { display: block; }

/* ── Awards Strip (Kruu-style) ── */
.qk-awards {
    padding: 48px 0;
    background: var(--qk-surface);
    border-bottom: 1px solid var(--qk-border-light);
}

.qk-awards__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.qk-award {
    text-align: center;
    padding: 24px;
}

.qk-award__icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.qk-award h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--qk-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.qk-award p {
    font-size: 13px;
    color: var(--qk-text-muted);
    line-height: 1.6;
}

/* ── Newsletter Footer ── */
.qk-footer__newsletter-desc {
    font-size: 13px;
    margin-bottom: 14px;
    color: rgba(255,255,255,0.55);
    line-height: 1.6;
}

.qk-footer__newsletter {
    display: block;
}

.qk-newsletter-field {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 5px 5px 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    transition: border-color var(--qk-transition), box-shadow var(--qk-transition), background var(--qk-transition);
}

.qk-newsletter-field:focus-within {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(201, 162, 39, 0.45);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.12);
}

.qk-footer__newsletter input {
    flex: 1;
    min-width: 0;
    padding: 11px 14px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: #fff;
    font-size: 14px;
    outline: none;
}

.qk-footer__newsletter input::placeholder {
    color: rgba(255, 255, 255, 0.38);
}

.qk-newsletter-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-shrink: 0;
    padding: 11px 18px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--qk-accent-light) 0%, var(--qk-accent) 55%, var(--qk-accent-dark) 100%);
    color: var(--qk-primary-dark);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: transform var(--qk-transition), box-shadow var(--qk-transition), filter var(--qk-transition);
    box-shadow: 0 4px 14px rgba(201, 162, 39, 0.28);
}

.qk-newsletter-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(201, 162, 39, 0.4);
    filter: brightness(1.03);
}

.qk-newsletter-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(201, 162, 39, 0.25);
}

.qk-newsletter-submit svg {
    transition: transform var(--qk-transition);
}

.qk-newsletter-submit:hover svg {
    transform: translateX(2px);
}

.qk-newsletter-hint {
    margin: 10px 0 0;
    padding-left: 4px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
    line-height: 1.5;
}

.qk-newsletter-success {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    border-radius: var(--qk-radius);
    background: rgba(201, 162, 39, 0.12);
    border: 1px solid rgba(201, 162, 39, 0.28);
    color: var(--qk-accent-light);
    font-size: 13px;
    line-height: 1.6;
}

.qk-newsletter-success svg {
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--qk-accent);
}

/* ── Membership Tiers ── */
.qk-tiers-pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: stretch;
}

.qk-tier-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--qk-border-light);
    text-align: center;
    position: relative;
    transition: var(--qk-transition);
}

.qk-tier-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--qk-shadow-lg);
}

.qk-tier-card--featured {
    border-color: var(--qk-accent);
    box-shadow: var(--qk-shadow-glow);
}

.qk-tier-card--featured::before {
    content: '推荐';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--qk-accent);
    color: var(--qk-primary-dark);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 50px;
}

.qk-tier-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.qk-tier-card__price {
    font-size: 40px;
    font-weight: 800;
    color: var(--qk-primary);
    margin-bottom: 4px;
}

.qk-tier-card__price span {
    font-size: 16px;
    font-weight: 500;
    color: var(--qk-text-muted);
}

.qk-tier-card__list {
    text-align: left;
    margin: 28px 0;
}

.qk-tier-card__list li {
    font-size: 14px;
    color: var(--qk-text-secondary);
    padding: 8px 0 8px 24px;
    position: relative;
    border-bottom: 1px solid var(--qk-border-light);
}

.qk-tier-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--qk-teal);
    font-weight: 700;
}

/* ── Process Steps ── */
.qk-process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.qk-process__step {
    text-align: center;
    position: relative;
}

.qk-process__num {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--qk-primary);
    color: var(--qk-accent);
    font-size: 22px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.qk-process__step h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.qk-process__step p {
    font-size: 13px;
    color: var(--qk-text-muted);
    line-height: 1.6;
}

/* ── Detail Page Layout ── */
.qk-detail-page {
    max-width: 100%;
}

.qk-detail-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--qk-text-muted);
    margin-bottom: 12px;
}

.qk-detail-breadcrumb a {
    color: var(--qk-teal);
    text-decoration: none;
}

.qk-detail-breadcrumb a:hover { text-decoration: underline; }

.qk-detail-breadcrumb span:last-child {
    color: var(--qk-text-secondary);
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.qk-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 28px;
    padding: 28px 32px;
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    border: 1px solid var(--qk-border-light);
    box-shadow: var(--qk-shadow-sm);
}

.qk-detail-header__type {
    font-size: 13px;
    font-weight: 600;
    color: var(--qk-teal);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0 0 10px;
}

.qk-detail-header h1 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 800;
    color: var(--qk-primary);
    margin: 12px 0 10px;
    line-height: 1.25;
}

.qk-detail-header__summary {
    font-size: 16px;
    color: var(--qk-text-secondary);
    line-height: 1.75;
    margin: 0;
    max-width: 720px;
}

.qk-detail-header__back {
    flex-shrink: 0;
    white-space: nowrap;
}

.qk-detail-overview {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 32px;
}

.qk-detail-overview__item {
    display: flex;
    flex-direction: column;
    padding: 16px 18px;
    background: var(--qk-surface);
    border: 1px solid var(--qk-border-light);
    border-radius: var(--qk-radius);
    box-shadow: var(--qk-shadow-sm);
}

.qk-detail-overview__item--accent {
    border-color: rgba(11, 107, 122, 0.25);
    background: rgba(11, 107, 122, 0.04);
}

.qk-detail-overview__label {
    font-size: 12px;
    color: var(--qk-text-muted);
    margin-bottom: 8px;
}

.qk-detail-overview__value {
    font-size: 18px;
    font-weight: 700;
    color: var(--qk-primary);
    line-height: 1.3;
}

.qk-detail-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
    align-items: start;
}

.qk-detail-main {
    min-width: 0;
}

.qk-detail-panel {
    background: var(--qk-surface);
    border: 1px solid var(--qk-border-light);
    border-radius: var(--qk-radius-lg);
    padding: 24px 28px;
    margin-bottom: 20px;
    box-shadow: var(--qk-shadow-sm);
}

.qk-detail-panel h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--qk-border-light);
}

.qk-detail-intro p {
    font-size: 15px;
    color: var(--qk-text-secondary);
    line-height: 1.85;
    margin: 0 0 14px;
}

.qk-detail-intro p:last-child { margin-bottom: 0; }

.qk-detail-lead-text {
    font-size: 15px;
    color: var(--qk-text-secondary);
    line-height: 1.8;
    margin: 0 0 16px;
}

.qk-detail-tasks {
    margin: 0;
    padding: 0 0 0 22px;
    list-style: disc;
}

.qk-detail-tasks li {
    font-size: 15px;
    color: var(--qk-text-secondary);
    line-height: 1.75;
    margin-bottom: 8px;
}

.qk-detail-timeline {
    display: grid;
    gap: 12px;
}

.qk-detail-timeline--grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.qk-detail-timeline__item {
    padding: 16px 18px;
    background: var(--qk-bg-alt);
    border: 1px solid rgba(11, 107, 122, 0.15);
    border-radius: var(--qk-radius);
}

.qk-detail-timeline__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--qk-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.qk-detail-timeline__idx {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--qk-primary), var(--qk-teal));
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.qk-detail-timeline__desc {
    font-size: 14px;
    color: var(--qk-text-muted);
    line-height: 1.65;
    margin: 0;
}

.qk-detail-rewards {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.qk-detail-rewards li {
    position: relative;
    padding: 12px 14px 12px 44px;
    background: var(--qk-bg-alt);
    border: 1px solid var(--qk-border-light);
    border-radius: var(--qk-radius);
    font-size: 14px;
    color: var(--qk-text-secondary);
    line-height: 1.65;
    list-style: none;
}

.qk-detail-rewards li::before {
    content: "✓";
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #22b05f, #16a34a);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qk-detail-mentor-groups {
    display: grid;
    gap: 16px;
}

.qk-detail-mentor-group__title {
    font-size: 15px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 0 0 10px;
}

.qk-detail-mentor-card {
    display: flex;
    gap: 14px;
    padding: 16px;
    background: var(--qk-bg-alt);
    border-radius: var(--qk-radius);
    border: 1px solid var(--qk-border-light);
}

.qk-detail-mentor-card__photo,
.qk-detail-mentor__photo {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.qk-detail-mentor-card strong {
    display: block;
    font-size: 15px;
    color: var(--qk-primary);
    margin-bottom: 4px;
}

.qk-detail-mentor-card__title {
    display: block;
    font-size: 13px;
    color: var(--qk-teal);
    margin-bottom: 8px;
}

.qk-detail-mentor-card p {
    font-size: 13px;
    color: var(--qk-text-muted);
    line-height: 1.65;
    margin: 0;
}

.qk-detail-teams {
    display: grid;
    gap: 12px;
}

.qk-detail-team {
    padding: 16px 18px;
    border: 1px solid var(--qk-border-light);
    border-radius: var(--qk-radius);
    background: var(--qk-bg-alt);
}

.qk-detail-team__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.qk-detail-team__head strong {
    font-size: 15px;
    color: var(--qk-primary);
}

.qk-detail-team__status {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
}

.qk-detail-team__status.is-open {
    background: rgba(34, 176, 95, 0.12);
    color: #16a34a;
}

.qk-detail-team__status.is-full {
    background: rgba(100, 116, 139, 0.12);
    color: var(--qk-text-muted);
}

.qk-detail-team__intro {
    font-size: 14px;
    color: var(--qk-text-secondary);
    line-height: 1.65;
    margin: 0 0 10px;
}

.qk-detail-team__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
    font-size: 12px;
    color: var(--qk-text-muted);
}

.qk-detail-team-empty {
    font-size: 14px;
    color: var(--qk-text-muted);
    margin: 0;
}

.qk-badge--teal {
    background: rgba(11, 107, 122, 0.1);
    color: var(--qk-teal);
}

.qk-sidebar-card__cover {
    width: 100%;
    height: 160px;
    border-radius: var(--qk-radius);
    background: var(--qk-bg-alt) center/cover no-repeat;
    margin-bottom: 20px;
}

.qk-detail-main img.qk-detail-hero-img {
    width: 100%;
    border-radius: var(--qk-radius-lg);
    margin-bottom: 32px;
    box-shadow: var(--qk-shadow);
}

.qk-detail-main h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 32px 0 16px;
}

.qk-detail-main p, .qk-detail-main li {
    font-size: 16px;
    color: var(--qk-text-secondary);
    line-height: 1.8;
}

.qk-detail-main ul { margin: 16px 0 16px 24px; }
.qk-detail-main li { list-style: disc; margin-bottom: 8px; }

.qk-detail-lead {
    font-size: 18px;
    color: var(--qk-text);
    line-height: 1.75;
    margin-bottom: 28px;
    padding-left: 16px;
    border-left: 3px solid var(--qk-teal);
}

.qk-detail-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.qk-detail-steps {
    display: grid;
    gap: 14px;
    margin: 8px 0 24px;
}

.qk-detail-step {
    display: flex;
    gap: 14px;
    padding: 16px 18px;
    background: var(--qk-bg-alt);
    border-radius: var(--qk-radius);
    border: 1px solid var(--qk-border-light);
}

.qk-detail-step__num {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--qk-primary), var(--qk-teal));
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qk-detail-step__body h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 0 0 6px;
}

.qk-detail-step__body p {
    font-size: 14px;
    margin: 0;
    line-height: 1.65;
}

.qk-detail-gains {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}

.qk-detail-gain {
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(11, 107, 122, 0.08);
    color: var(--qk-teal);
    font-size: 13px;
    font-weight: 600;
}

.qk-detail-outcomes {
    display: grid;
    gap: 14px;
    margin-top: 8px;
}

.qk-detail-outcome {
    padding: 18px 20px;
    background: var(--qk-surface);
    border-radius: var(--qk-radius);
    border: 1px solid var(--qk-border-light);
    border-left: 3px solid var(--qk-gold);
}

.qk-detail-outcome h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 0 0 8px;
}

.qk-detail-outcome p {
    font-size: 14px;
    margin: 0;
    line-height: 1.65;
}

.qk-detail-mentors {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.qk-detail-mentor {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: var(--qk-bg-alt);
    border-radius: var(--qk-radius);
}

.qk-detail-mentor__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--qk-primary), var(--qk-teal));
    color: #fff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qk-detail-mentor strong {
    display: block;
    font-size: 14px;
    color: var(--qk-primary);
}

.qk-detail-mentor span {
    font-size: 12px;
    color: var(--qk-text-muted);
}

.qk-detail-faqs {
    display: grid;
    gap: 12px;
}

.qk-detail-faq {
    padding: 16px 18px;
    background: var(--qk-surface);
    border: 1px solid var(--qk-border-light);
    border-radius: var(--qk-radius);
}

.qk-detail-faq h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--qk-primary);
    margin: 0 0 8px;
}

.qk-detail-faq p {
    font-size: 14px;
    margin: 0;
    line-height: 1.65;
}

.qk-sidebar-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    padding: 28px;
    border: 1px solid var(--qk-border-light);
    position: sticky;
    top: calc(var(--qk-header-h) + 24px);
}

.qk-sidebar-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

.qk-sidebar-card__row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--qk-border-light);
    font-size: 14px;
}

.qk-sidebar-card__row span:first-child { color: var(--qk-text-muted); }
.qk-sidebar-card__row span:last-child { font-weight: 600; color: var(--qk-primary); }

.qk-sidebar-card .qk-btn { width: 100%; margin-top: 20px; }

/* ── Summit Timeline ── */
.qk-timeline { max-width: 720px; margin: 0 auto; }

.qk-timeline__item {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    position: relative;
}

.qk-timeline__date {
    flex-shrink: 0;
    width: 100px;
    font-size: 14px;
    font-weight: 700;
    color: var(--qk-accent-dark);
    padding-top: 4px;
}

.qk-timeline__content {
    background: var(--qk-surface);
    border-radius: var(--qk-radius);
    padding: 24px;
    border: 1px solid var(--qk-border-light);
    flex: 1;
}

.qk-timeline__content h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.qk-timeline__content p {
    font-size: 14px;
    color: var(--qk-text-muted);
    line-height: 1.6;
}

/* ── Merit Cards ── */
.qk-merit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.qk-merit-card {
    background: var(--qk-surface);
    border-radius: var(--qk-radius-lg);
    padding: 36px 28px;
    text-align: center;
    border: 1px solid var(--qk-border-light);
    transition: var(--qk-transition);
}

.qk-merit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--qk-shadow);
}

.qk-merit-card__icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 20px;
    padding: 3px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--qk-accent) 0%, var(--qk-teal) 50%, var(--qk-primary) 100%);
    box-shadow: 0 8px 24px rgba(11, 45, 74, 0.16), var(--qk-shadow-glow);
}

.qk-merit-card__icon img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    border: 2px solid rgba(255, 255, 255, 0.85);
    background: linear-gradient(145deg, var(--qk-primary-dark) 0%, var(--qk-primary) 55%, var(--qk-teal) 100%);
}

.qk-merit-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.qk-merit-card p { font-size: 14px; color: var(--qk-text-muted); line-height: 1.6; }

@media (max-width: 1024px) {
    .qk-awards__grid { grid-template-columns: 1fr; }
    .qk-tiers-pricing { grid-template-columns: 1fr; }
    .qk-process { grid-template-columns: repeat(2, 1fr); }
    .qk-detail-layout { grid-template-columns: 1fr; }
    .qk-detail-overview { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .qk-detail-timeline--grid { grid-template-columns: 1fr; }
    .qk-detail-header { flex-direction: column; }
    .qk-detail-mentors { grid-template-columns: 1fr; }
    .qk-merit-grid { grid-template-columns: 1fr; }
    .qk-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .qk-process { grid-template-columns: 1fr; }
}

@media (max-width: 580px) {
    .qk-detail-overview { grid-template-columns: 1fr; }
}