/* --- 核心样式与动画 --- */
:root {
    --cp-yellow: #FCEE0A;
    --cp-blue: #00F0FF;
    --cp-red: #FF003C;
    --bg-color: #050505;
}

body {
    background-color: var(--bg-color);
    color: var(--cp-yellow);
    font-family: 'Oxanium', sans-serif;
    overflow-x: hidden;
    cursor: url('data:image/svg+xml;utf8,<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M16 4 L28 16 L16 28 L4 16 Z" stroke="%23FF003C" stroke-width="2" fill="none"/><rect x="15" y="15" width="2" height="2" fill="%23FF003C"/></svg>') 16 16, auto;
}
a, button, input, textarea, .interactive {
     cursor: url('data:image/svg+xml;utf8,<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M16 2 L30 16 L16 30 L2 16 Z" stroke="%2300F0FF" stroke-width="2" fill="none"/><rect x="14" y="14" width="4" height="4" fill="%2300F0FF"/></svg>') 16 16, pointer;
}
/* 选中文字效果 */
::selection {
    background: var(--cp-red);
    color: white;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1a1a1a;
}
::-webkit-scrollbar-thumb {
    background: var(--cp-red);
}

/* 背景网格动画 */
.bg-grid {
    background-size: 40px 40px;
    mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
    z-index: -1;
}

/* 扫描线效果 */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0) 50%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.2));
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 50;
    opacity: 0.3;
}

/* 切角边框 (Cyberpunk UI 核心) */
.cp-box {
    clip-path: polygon(
        0 0, 
        100% 0, 
        100% calc(100% - 20px), 
        calc(100% - 20px) 100%, 
        0 100%
    );
    border-left: 4px solid var(--cp-yellow);
    position: relative;
}

.cp-box::before {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 2px;
    background: var(--cp-yellow);
    transform: rotate(45deg);
    transform-origin: bottom right;
}

/* 故障文字效果 (Glitch) */
.glitch {
    position: relative;
}
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
}
.glitch::before {
    left: 2px;
    text-shadow: -1px 0 var(--cp-red);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}
.glitch::after {
    left: -2px;
    text-shadow: -1px 0 var(--cp-blue);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim2 5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(34px, 9999px, 11px, 0); }
    5% { clip: rect(68px, 9999px, 96px, 0); }
    10% { clip: rect(12px, 9999px, 5px, 0); }
    15%, 100% { clip: rect(0, 0, 0, 0); }
}
@keyframes glitch-anim2 {
    0% { clip: rect(14px, 9999px, 81px, 0); }
    5% { clip: rect(28px, 9999px, 46px, 0); }
    10% { clip: rect(92px, 9999px, 35px, 0); }
    15%, 100% { clip: rect(0, 0, 0, 0); }
}

/* 按钮样式 */
.cp-btn {
    background: transparent;
    border: 1px solid var(--cp-blue);
    color: var(--cp-blue);
    position: relative;
    transition: all 0.2s;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.cp-btn:hover {
    background: var(--cp-blue);
    color: black;
    box-shadow: 0 0 15px var(--cp-blue);
    text-shadow: none;
}
.cp-btn:active {
    transform: scale(0.98);
}

/* 输入框样式 */
.cp-input {
    background: rgba(0,0,0,0.6);
    border: 1px solid #333;
    border-bottom: 2px solid var(--cp-red);
    transition: all 0.3s;
}
.cp-input:focus {
    border-color: var(--cp-blue);
    outline: none;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

/* 图片故障滤镜 */
.img-cyber {
    filter: grayscale(100%) contrast(1.2);
    transition: filter 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.2);
}
.img-cyber:hover {
    filter: grayscale(0%) contrast(1) drop-shadow(0 0 8px var(--cp-blue));
}

/* 加载动画层 */
#preloader {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    transition: opacity 0.5s;
}
.loader-bar {
    width: 300px;
    height: 4px;
    background: #333;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
}
.loader-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--cp-yellow);
    width: 0%;
    animation: load 2s ease-in-out forwards;
}
@keyframes load { to { width: 100%; } }