@charset "utf-8";
/*
    Theme Name: gooka AI官网
    Theme URI: 
    Author: 阿叶
    Author URI: 
    Description:
    Version: 0.0.1
*/


:root {
    --go-red: #ff3b5c;
    --go-red-light: #ff5a75;
    --go-red-dark: #e62e4d;
    --go-red-glow: rgba(255, 59, 92, 0.5);
    --go-black: #0a0a0a;
    --go-black-light: #111111;
    --go-black-card: #161616;
    --go-white: #ffffff;
    --go-gray: #888888;
    --go-gray-light: #cccccc;
    --go-border: rgba(255, 59, 92, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a,a:hover {
    text-decoration: none;
}
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: var(--go-black);
    color: var(--go-white);
    overflow-x: hidden;
}

/* ========== HEADER ========== */
.go-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 3rem;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--go-border);
}

.go-logo-wrap {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.go-logo-img {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    object-fit: cover;
    border: 2px solid var(--go-red);
    box-shadow: 0 0 20px var(--go-red-glow);
}

.go-logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--go-white) 0%, var(--go-red) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.go-nav-list {
    display: flex;
    gap: 3rem;
    list-style: none;
}
.go-nav-list a {
    color: #fff;
    text-decoration: none;
}
.go-nav-link {
    color: var(--go-gray);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: color 0.3s;
}

.go-nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--go-red);
    transition: width 0.3s;
}

.go-nav-link:hover {
    color: var(--go-red);
}

.go-nav-link:hover::after {
    width: 100%;
}

.go-btn-download {
    padding: 0.75rem 1.8rem;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border: none;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px var(--go-red-glow);
}

.go-btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--go-red-glow);
}

.go-menu-icon {
    display: none;
    background: none;
    border: none;
    color: var(--go-white);
    font-size: 1.8rem;
    cursor: pointer;
}

/* ========== HERO SECTION (sy-) ========== */
.sy {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 0 3rem;
}

.sy-bg-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
}

.sy-circle-1 {
    width: 600px;
    height: 600px;
    background: var(--go-red);
    top: -200px;
    right: -100px;
}

.sy-circle-2 {
    width: 400px;
    height: 400px;
    background: var(--go-red);
    bottom: -100px;
    left: -100px;
}

.sy-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding-top: 80px;
}

.sy-left {
    position: relative;
    z-index: 2;
}

.sy-hb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: rgba(255, 59, 92, 0.1);
    border: 1px solid var(--go-border);
    border-radius: 50px;
    margin-bottom: 2rem;
}

.sy-hb-dot {
    width: 8px;
    height: 8px;
    background: var(--go-red);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.sy-hb-text {
    font-size: 0.85rem;
    color: var(--go-red);
    font-weight: 500;
}

.sy-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.sy-title-main {
    display: block;
}

.sy-title-accent {
    display: block;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sy-desc {
    font-size: 1.1rem;
    color: var(--go-gray-light);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.sy-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.sy-an-primary {
    padding: 1rem 2.2rem;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s;
    box-shadow: 0 4px 25px var(--go-red-glow);
}

.sy-an-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px var(--go-red-glow);
}

.sy-an-secondary {
    padding: 1rem 2.2rem;
    background: transparent;
    border: 2px solid var(--go-border);
    border-radius: 12px;
    color: var(--go-white);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s;
}

.sy-an-secondary:hover {
    border-color: var(--go-red);
    color: var(--go-red);
}

.sy-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--go-border);
}

.sy-tj-item {
    text-align: center;
}

.sy-tj-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--go-red);
    display: block;
}

.sy-tj-label {
    font-size: 0.85rem;
    color: var(--go-gray);
    margin-top: 0.3rem;
    display: block;
}

.sy-right {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.sy-visual {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sy-circle-main {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 59, 92, 0.15) 0%, rgba(255, 59, 92, 0.05) 100%);
    border: 2px solid var(--go-border);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 60px var(--go-red-glow), inset 0 0 60px rgba(255, 59, 92, 0.1);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 100px var(--go-red-glow), inset 0 0 80px rgba(255, 59, 92, 0.15);
        transform: scale(1.02);
    }
}

.sy-icon-center {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px var(--go-red-glow);
    position: relative;
    z-index: 2;
}

.sy-icon-center i {
    font-size: 4rem;
    color: white;
}

.sy-gd-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed var(--go-border);
}

.sy-gd-ring-1 {
    width: 320px;
    height: 320px;
    animation: rotate 20s linear infinite;
}

.sy-gd-ring-2 {
    width: 460px;
    height: 460px;
    animation: rotate 30s linear infinite reverse;
}

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

.sy-gd-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--go-red);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--go-red);
}

.sy-gd-ring-1 .sy-gd-dot {
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
}

.sy-gd-ring-2 .sy-gd-dot {
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
}

.sy-fd {
    position: absolute;
    background: var(--go-black-card);
    border: 1px solid var(--go-border);
    border-radius: 16px;
    padding: 1rem 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    backdrop-filter: blur(10px);
    animation: float 3s ease-in-out infinite;
    z-index: 3;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.sy-fd-pos-1 {
    top: 20px;
    right: 0;
    animation-delay: 0s;
}

.sy-fd-pos-2 {
    bottom: 80px;
    left: 0;
    animation-delay: 1s;
}

.sy-fd-pos-3 {
    bottom: 20px;
    right: 40px;
    animation-delay: 2s;
}

.sy-fd-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sy-fd-icon i {
    font-size: 1.3rem;
    color: white;
}

.sy-fd-content h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.sy-fd-content p {
    font-size: 0.75rem;
    color: var(--go-gray);
}

/* ========== SHOWCASE SECTION (cp-) ========== */
.cp {
    padding: 4rem 3rem;
}

.cp-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cp-item {
    border-radius: 16px;
    overflow: hidden;
}

.cp-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ========== FEATURES SECTION (gn-) ========== */
.gn {
    padding: 8rem 3rem;
    position: relative;
}

.bk-header {
    text-align: center;
    margin-bottom: 4rem;
}

.bq {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(255, 59, 92, 0.1);
    border: 1px solid var(--go-border);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--go-red);
    font-weight: 500;
    margin-bottom: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.bk-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.bk-subtitle {
    color: var(--go-gray-light);
    font-size: 1rem;
    max-width: 550px;
    margin: 0 auto;
    line-height: 1.7;
}

.gn-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.gn-card {
    background: var(--go-black-card);
    border: 1px solid var(--go-border);
    border-radius: 24px;
    padding: 2.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.gn-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--go-red) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.gn-card:hover {
    border-color: var(--go-red);
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 0 40px var(--go-red-glow);
}

.gn-card:hover::before {
    opacity: 1;
}

.gn-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.gn-icon i {
    font-size: 1.8rem;
    color: white;
}

.gn-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.gn-card p {
    color: var(--go-gray-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ========== FAQ SECTION (cj-) ========== */
.cj {
    padding: 8rem 3rem;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 59, 92, 0.03) 50%, transparent 100%);
}

.cj-list {
    max-width: 800px;
    margin: 0 auto;
}

.cj-item {
    background: var(--go-black-card);
    border: 1px solid var(--go-border);
    border-radius: 16px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.cj-item:hover {
    border-color: rgba(255, 59, 92, 0.3);
}

.cj-item.cj-active {
    border-color: var(--go-red);
}

.cj-wt {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    gap: 1rem;
}

.cj-wt-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cj-wt-left i {
    font-size: 1.2rem;
    color: var(--go-red);
}

.cj-wt-left h3 {
    font-size: 1rem;
    font-weight: 600;
}

.cj-arrow {
    width: 32px;
    height: 32px;
    background: rgba(255, 59, 92, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.cj-arrow i {
    font-size: 1.2rem;
    color: var(--go-red);
    transition: transform 0.3s ease;
}

.cj-item.cj-active .cj-arrow {
    background: var(--go-red);
}

.cj-item.cj-active .cj-arrow i {
    color: white;
    transform: rotate(180deg);
}

.cj-da {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.cj-da-inner {
    padding: 0 1.5rem 1.25rem 3.5rem;
    color: var(--go-gray-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

.cj-item.cj-active .cj-da {
    max-height: 200px;
}

/* ========== TESTIMONIALS SECTION (pj-) ========== */
.pj {
    padding: 8rem 3rem;
}

.pj-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pj-card {
    background: var(--go-black-card);
    border: 1px solid var(--go-border);
    border-radius: 24px;
    padding: 2.5rem;
    position: relative;
    transition: all 0.3s;
}

.pj-card:hover {
    border-color: var(--go-red);
    transform: translateY(-5px);
}

.pj-quote {
    font-size: 3rem;
    color: var(--go-red);
    opacity: 0.3;
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    font-family: serif;
}

.pj-stars {
    display: flex;
    gap: 0.3rem;
    margin-bottom: 1.2rem;
}

.pj-stars i {
    color: var(--go-red);
    font-size: 1rem;
}

.pj-text {
    color: var(--go-gray-light);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.pj-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pj-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--go-red) 0%, var(--go-red-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.pj-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.pj-info span {
    font-size: 0.8rem;
    color: var(--go-gray);
}

/* ========== FOOTER ========== */
.go-footer {
    padding:3rem 2rem;
    border-top: 1px solid var(--go-border);
}

.go-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.go-footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
    gap: 3rem;
    flex-wrap: wrap;
}

.go-footer-brand {
    max-width: 300px;
}

.go-footer-brand p {
    color: var(--go-gray-light);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-top: 1rem;
}

.go-footer-links {
    display: flex;
    gap: 4rem;
}

.go-footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--go-white);
}

.go-footer-col ul {
    list-style: none;
}

.go-footer-col li {
    margin-bottom: 0.6rem;
}

.go-footer-col a {
    color: var(--go-gray);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.go-footer-col a:hover {
    color: var(--go-red);
}

.go-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.go-footer-copy {
    color: var(--go-gray);
    font-size: 0.85rem;
}

.go-footer-social {
    display: flex;
    gap: 1rem;
}

.go-social-icon {
    width: 40px;
    height: 40px;
    background: var(--go-black-card);
    border: 1px solid var(--go-border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--go-gray);
    text-decoration: none;
    transition: all 0.3s;
}

.go-social-icon:hover {
    border-color: var(--go-red);
    color: var(--go-red);
    transform: translateY(-3px);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .gn-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cp-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .cp {
        padding: 3rem 1.5rem;
    }

    .pj-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .go-header {
        padding: 0 1.5rem;
    }

    .go-nav-list {
        display: none;
    }

    .go-btn-download {
        display: none;
    }

    .go-menu-icon {
        display: block;
    }

    .sy {
        padding: 0 1.5rem;
    }

    .sy-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
        padding-top: 100px;
    }

    .sy-left {
        order: 2;
    }

    .sy-right {
        display: none;
    }

    .sy-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .sy-buttons {
        flex-direction: column;
        width: 100%;
    }

    .sy-buttons .sy-an-primary {
        width: 100%;
        justify-content: center;
    }

    .sy-buttons .sy-an-secondary {
        display: none;
    }

    .sy-stats {
        justify-content: center;
        gap: 2rem;
    }

    .sy-visual {
        height: 350px;
    }

    .sy-circle-main {
        width: 250px;
        height: 250px;
    }

    .sy-icon-center {
        width: 100px;
        height: 100px;
    }

    .sy-icon-center i {
        font-size: 2.5rem;
    }

    .sy-gd-ring-1 {
        width: 200px;
        height: 200px;
    }

    .sy-gd-ring-2 {
        width: 300px;
        height: 300px;
    }

    .sy-fd {
        display: none;
    }

    .gn,
    .cp,
    .cj,
    .pj {
        padding: 5rem 1.5rem;
    }

    .gn-grid,
    .cp-grid,
    .pj-grid {
        grid-template-columns: 1fr;
    }

    .go-footer {
        padding: 3rem 1.5rem 1.5rem;
    }

    .go-footer-top {
        flex-direction: column;
    }

    .go-footer-links {
        display: none;
    }

    .go-footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .go-footer-social {
        display: none;
    }
}