/* ===== 核心参数 ===== */
.spec-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin: 2rem 0 3.5rem;
}

.spec-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 32px;
    padding: 1.8rem 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    transition: all 0.3s ease;
}

.spec-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
}

.spec-card .spec-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.6rem;
}

.spec-card .spec-icon svg {
    width: 28px;
    height: 28px;
    stroke: #0071e3;
    fill: none;
    stroke-width: 2;
}

.spec-card .spec-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1d1d1f;
    letter-spacing: -0.02em;
}

.spec-card .spec-label {
    font-size: 0.9rem;
    color: #6e6e73;
    margin-top: 0.2rem;
}

/* ===== 多模态能力展示 ===== */
.multimodal-section {
    margin: 3rem 0 2.5rem;
}

.multimodal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.multimodal-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 32px;
    padding: 2rem 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    transition: all 0.35s ease;
}

.multimodal-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.06);
}

.multimodal-card .mm-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.8rem;
}

.multimodal-card .mm-header svg {
    width: 28px;
    height: 28px;
    stroke: #0071e3;
    fill: none;
    stroke-width: 2;
}

.multimodal-card .mm-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
}

.multimodal-card .mm-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.multimodal-card .mm-tags span {
    font-size: 0.75rem;
    padding: 3px 14px;
    border-radius: 20px;
    background: rgba(0, 113, 227, 0.06);
    color: #0071e3;
    border: 1px solid rgba(0, 113, 227, 0.06);
}

.multimodal-card .mm-tags span.understand {
    background: rgba(255, 107, 107, 0.06);
    color: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.08);
}

.multimodal-card .mm-tags span.create {
    background: rgba(46, 213, 115, 0.06);
    color: #2ed573;
    border-color: rgba(46, 213, 115, 0.08);
}

/* ===== 价格 ===== */
.pricing-section {
    margin: 3rem 0 2.5rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 32px;
    padding: 2rem 1.5rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    transition: all 0.35s ease;
}

.pricing-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.06);
}

.pricing-card.featured {
    border: 2px solid #0071e3;
    background: rgba(255, 255, 255, 0.92);
    position: relative;
}

.pricing-card.featured::before {
    content: '推荐';
    position: absolute;
    top: -10px;
    right: 20px;
    background: #0071e3;
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 14px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.pricing-card .plan-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1d1d1f;
    letter-spacing: -0.01em;
}

.pricing-card .plan-price {
    font-size: 2.2rem;
    font-weight: 700;
    color: #1d1d1f;
    margin: 0.5rem 0 0.2rem;
}

.pricing-card .plan-price span {
    font-size: 1rem;
    font-weight: 400;
    color: #6e6e73;
}

.pricing-card .plan-tokens {
    font-size: 1.1rem;
    color: #0071e3;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.pricing-card .plan-desc {
    font-size: 0.9rem;
    color: #6e6e73;
    line-height: 1.6;
}

.pricing-card .btn-plan {
    display: inline-block;
    margin-top: 1.2rem;
    padding: 10px 32px;
    border-radius: 60px;
    background: transparent;
    border: 1px solid #d2d2d7;
    color: #1d1d1f;
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.25s ease;
}

.pricing-card .btn-plan:hover {
    background: #0071e3;
    border-color: #0071e3;
    color: white;
    box-shadow: 0 8px 20px rgba(0, 113, 227, 0.25);
}

.pricing-card.featured .btn-plan {
    background: #0071e3;
    border-color: #0071e3;
    color: white;
    box-shadow: 0 8px 20px rgba(0, 113, 227, 0.2);
}

.pricing-card.featured .btn-plan:hover {
    background: #0077ed;
    transform: scale(1.02);
}

.paygo-section {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-radius: 40px;
    padding: 2rem 2.5rem;
    margin: 2rem 0 3rem;
    border: 1px solid rgba(255, 255, 255, 0.6);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2.5rem 4rem;
}

.paygo-item {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.paygo-item .label {
    font-size: 0.95rem;
    color: #6e6e73;
}

.paygo-item .value {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1d1d1f;
}

.paygo-item .value .unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: #6e6e73;
}

.trial-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(52, 199, 89, 0.12);
    color: #34c759;
    padding: 6px 18px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(52, 199, 89, 0.15);
}

/* ===== 演示动画区域 ===== */
.demo-wrapper {
    margin: 3rem 0 2.5rem;
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.demo-wrapper.visible {
    opacity: 1;
    transform: translateY(0);
}

.demo-container {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 40px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow 0.3s ease;
}

.demo-container:hover {
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
}

.demo-container .demo-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
}

.demo-container .demo-header .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.demo-container .demo-header .dot.red {
    background: #ff5f57;
}
.demo-container .demo-header .dot.yellow {
    background: #ffbd2e;
}
.demo-container .demo-header .dot.green {
    background: #28c840;
}

.demo-container .demo-header .demo-title {
    font-size: 0.85rem;
    color: #6e6e73;
    margin-left: 6px;
}

.demo-container .demo-header .demo-speed {
    margin-left: auto;
    font-size: 0.8rem;
    color: #8e8e93;
    background: rgba(0, 0, 0, 0.03);
    padding: 4px 14px;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.demo-container .demo-header .demo-replay-btn {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid #d2d2d7;
    padding: 4px 16px;
    border-radius: 30px;
    font-size: 0.75rem;
    color: #6e6e73;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.demo-container .demo-header .demo-replay-btn:hover {
    background: rgba(0, 113, 227, 0.06);
    border-color: #0071e3;
    color: #0071e3;
}

.demo-content-area {
    background: rgba(0, 0, 0, 0.02);
    border-radius: 24px;
    padding: 1.8rem 2rem;
    min-height: 280px;
    max-height: 520px;
    overflow-y: auto;
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    font-family: 'SF Mono', 'Menlo', monospace;
    font-size: 0.92rem;
    line-height: 1.8;
    color: #1d1d1f;
    white-space: pre-wrap;
    word-break: break-word;
}

.demo-content-area .typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1rem;
    background: #0071e3;
    vertical-align: text-bottom;
    animation: blink 0.9s step-end infinite;
    margin-left: 2px;
}

.demo-content-area .mm-badge {
    display: inline-block;
    font-size: 0.65rem;
    padding: 1px 10px;
    border-radius: 12px;
    margin-right: 4px;
    font-weight: 500;
}

.demo-content-area .mm-badge.understand {
    background: rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
}

.demo-content-area .mm-badge.create {
    background: rgba(46, 213, 115, 0.1);
    color: #2ed573;
}

.demo-content-area .mm-badge.audio {
    background: rgba(255, 159, 67, 0.1);
    color: #ff9f43;
}

.demo-content-area .mm-badge.video {
    background: rgba(74, 139, 194, 0.1);
    color: #4a8bc2;
}

.demo-content-area .section-label {
    display: inline-block;
    font-weight: 600;
    color: #1d1d1f;
    margin-right: 6px;
}

/* ===== 多模态输出卡片（真实展示） ===== */
/* ===== Demo Media Output ===== */ 
/* ===== 登录/注册 ===== */
.auth-entry {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 3rem 0 2rem;
    padding: 0 0.5rem;
}

.auth-entry-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-radius: 48px;
    padding: 2.8rem 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    transition: all 0.35s ease;
    text-align: center;
}

.auth-entry-card:hover {
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 113, 227, 0.12);
    transform: translateY(-4px);
}

.auth-entry-card .auth-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(0, 113, 227, 0.06);
    margin: 0 auto 1rem;
}

.auth-entry-card .auth-icon svg {
    width: 32px;
    height: 32px;
    stroke: #0071e3;
    fill: none;
    stroke-width: 2;
}

.auth-entry-card h3 {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.3rem;
}

.auth-entry-card .sub {
    color: #6e6e73;
    font-size: 0.98rem;
    margin-bottom: 1.5rem;
}

.auth-entry-card .btn-block {
    display: inline-block;
    width: 100%;
    max-width: 280px;
    padding: 14px;
    border-radius: 60px;
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.25s ease;
    border: 1px solid #d2d2d7;
    background: rgba(255, 255, 255, 0.6);
    color: #1d1d1f;
}

.auth-entry-card .btn-block-primary {
    background: #0071e3;
    color: white;
    border-color: #0071e3;
    box-shadow: 0 8px 24px rgba(0, 113, 227, 0.2);
}

.auth-entry-card .btn-block-primary:hover {
    background: #0077ed;
    transform: scale(1.02);
    box-shadow: 0 14px 34px rgba(0, 113, 227, 0.3);
}

.auth-entry-card .btn-block-outline:hover {
    background: #f5f5f7;
    border-color: #0071e3;
    color: #0071e3;
}


/* ===== Demo Inline Media ===== */
.demo-inline-media {
    display: block;
    margin: 0.6rem 0 0.8rem;
    animation: fadeInUp 0.5s ease;
}

.demo-inline-media img {
    max-width: 100%;
    max-height: 220px;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.06);
    display: block;
}

.demo-inline-media audio {
    width: 100%;
    max-width: 360px;
    height: 36px;
    border-radius: 8px;
}

.demo-inline-media video {
    max-width: 100%;
    max-height: 220px;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.06);
    display: block;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}