/* ============================================================
   WinUI 3 / Fluent Design 主题 · 错误反馈页
   - 令牌与 changelog / help 页保持一致
   - 浅色强调色 #00BBFF，深色 #005FB8
   - 深色文字整体压暗
   ============================================================ */

/* ---------- 设计令牌：浅色 ---------- */
:root {
    --accent: #00AAFF;
    --accent-hover: #33BBFF;
    --accent-pressed: #0099E6;
    --text-on-accent: #1B1B1B;

    --bg: #F3F3F3;
    --bg-layer: rgba(252, 252, 252, 0.7);
    --card-bg: #FFFFFF;
    --card-hover: #F9F9F9;
    --card-pressed: #F1F1F1;
    --control-bg: rgba(255, 255, 255, 0.7);
    --control-hover: rgba(0, 0, 0, 0.037);
    --control-focus-bg: #FFFFFF;

    --text-primary: #1B1B1B;
    --text-secondary: #5D5D5D;
    --text-tertiary: #868686;

    --stroke: rgba(0, 0, 0, 0.0578);
    --stroke-strong: rgba(0, 0, 0, 0.16);

    --danger: #C42B1C;

    /* 反馈状态语义色 */
    --status-green: #16A34A;
    --status-amber: #D97706;
    --status-purple: #7C3AED;
    --status-orange: #EA580C;
    --status-red: #DC2626;

    --radius: 8px;
    --radius-sm: 6px;
    --radius-xs: 2px;

    --ease: cubic-bezier(0.2, 0, 0, 1);
    --dur: 150ms;
}

/* ---------- 设计令牌：深色 ---------- */
.dark {
    --accent: #005FB8;
    --accent-hover: #1A6FC4;
    --accent-pressed: #004C93;
    --text-on-accent: #FFFFFF;

    --bg: #202020;
    --bg-layer: rgba(44, 44, 44, 0.7);
    --card-bg: rgba(255, 255, 255, 0.0512);
    --card-hover: rgba(255, 255, 255, 0.0837);
    --card-pressed: rgba(255, 255, 255, 0.0326);
    --control-bg: rgba(255, 255, 255, 0.0605);
    --control-hover: rgba(255, 255, 255, 0.0837);
    --control-focus-bg: rgba(255, 255, 255, 0.0837);

    --text-primary: rgba(255, 255, 255, 0.85);
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-tertiary: rgba(255, 255, 255, 0.44);

    --stroke: rgba(255, 255, 255, 0.0698);
    --stroke-strong: rgba(255, 255, 255, 0.16);

    --danger: #D97A85;

    --status-green: #4ADE80;
    --status-amber: #FBBF24;
    --status-purple: #A78BFA;
    --status-orange: #FB923C;
    --status-red: #F87171;

    color: var(--text-primary);
    background-color: var(--bg);
    background-image: none;
}
body.dark,
.dark body {
    background-color: var(--bg);
    background-image: none;
}

/* ---------- 基础重置 ---------- */
html {
    scrollbar-width: none;
    -ms-overflow-style: none;
}

::selection {
    background: rgba(0, 187, 255, 0.3);
    color: inherit;
}
.dark ::selection {
    background: rgba(96, 205, 255, 0.3);
}

* {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    transition: filter 0.1s;
}

body {
    height: 100vh;
    margin: 0 auto;
    font-family: "Segoe UI Variable Text", "Segoe UI",
                 "Microsoft YaHei UI", "Microsoft YaHei",
                 "PingFang SC", system-ui, -apple-system, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg);
    background-image:
        radial-gradient(circle at 50% 0,
            rgba(0, 187, 255, 0.07), rgba(0, 187, 255, 0) 70.71%),
        radial-gradient(circle at 6.7% 75%,
            rgba(0, 187, 255, 0.06), rgba(0, 187, 255, 0) 70.71%),
        radial-gradient(circle at 93.3% 75%,
            rgba(135, 100, 255, 0.05), rgba(135, 100, 255, 0) 70.71%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body::-webkit-scrollbar {
    display: none;
}

/* ---------- 深色遮罩（保留结构，不再叠加变暗） ---------- */
.dark::after {
    content: '';
    position: fixed;
    z-index: 99999;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    pointer-events: none;
}

/* ---------- 布局 ---------- */
#body {
    margin: 0 auto;
    margin-bottom: 50px;
    justify-content: center;
}

#form {
    width: calc(100% - 20px);
    max-height: calc(100vh - 10px);
    display: block;
    margin: 5px 10px;
    overflow: auto;
}

#list {
    width: calc(100% - 20px);
    margin: 5px 10px;
    padding-bottom: 30px;
}

/* ---------- 表单控件 ---------- */
.container {
    width: 100%;
    margin: 8px auto;
    padding: 10px;
    box-sizing: border-box;
    background-color: var(--control-bg);
    border: 1px solid var(--stroke);
    border-bottom-color: var(--stroke-strong);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    transition: background-color var(--dur) var(--ease),
                border-color var(--dur) var(--ease);
}
.container:focus-within {
    background-color: var(--control-focus-bg);
    border-bottom-color: var(--accent);
}

textarea {
    width: 100%;
    margin: 8px auto;
    padding: 10px;
    box-sizing: border-box;
    display: block;
    outline: none;
    resize: none;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--control-bg);
    border: 1px solid var(--stroke);
    border-bottom-color: var(--stroke-strong);
    border-radius: var(--radius-sm);
    transition: background-color var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease);
}
textarea:focus {
    background-color: var(--control-focus-bg);
    border-bottom-color: var(--accent);
    box-shadow: inset 0 -1px 0 0 var(--accent);
}
textarea::placeholder {
    color: var(--text-tertiary);
}

#title {
    height: 40px;
    line-height: 20px;
    font-size: 16px;
    font-weight: 600;
}

#context {
    height: 160px;
    line-height: 1.6;
}

select {
    width: 100%;
    height: 32px;
    padding: 0 30px 0 11px;
    box-sizing: border-box;
    color: var(--text-primary);
    background-color: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23868686' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 12px;
    cursor: pointer;
}
.dark select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%23B1B1B1' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

option {
    color: var(--text-primary);
    background-color: var(--card-bg);
}
.dark option {
    color: var(--text-primary);
    background-color: #2B2B2B;
}

/* ---------- 强调按钮 ---------- */
input[type=button],
input[type=submit] {
    display: block;
    width: 100%;
    max-width: 360px;
    height: 36px;
    margin: 8px auto 30px;
    padding: 0 16px;
    box-sizing: border-box;
    outline: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: var(--bg);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--dur) var(--ease),
                opacity var(--dur) var(--ease);
}
input[type=button]:hover,
input[type=submit]:hover {
    background: var(--accent-hover);
}
input[type=button]:active,
input[type=submit]:active {
    background: var(--accent-pressed);
    opacity: 0.9;
}
input[type=button]:disabled,
input[type=submit]:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
#button {
    margin-bottom: 30px;
}

/* ---------- 反馈列表 ---------- */
#list a {
    color: var(--accent);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

#list .singlelink {
    display: block;
    width: 100%;
    margin: 0 auto 8px;
    padding: 12px 16px;
    box-sizing: border-box;
    line-height: 1.6;
    font-size: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--stroke);
    background-color: var(--card-bg);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    transition: background-color var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease),
                transform var(--dur) var(--ease);
    transform: translateZ(0);
    -webkit-backdrop-filter: blur(30px);
    backdrop-filter: blur(30px);
}
#list .singlelink:active {
    transform: scale(0.98);
    background-color: var(--card-pressed);
}
.singlelink b {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent);
}

/* 列表底部"显示更多" */
#listResolved > div {
    color: var(--accent) !important;
}

/* ---------- 图片上传 ---------- */
.up_image {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 20px auto;
    box-sizing: border-box;
    border-radius: var(--radius-sm);
    border: dashed 2px var(--stroke-strong);
    background: var(--control-bg);
    transition: border-color var(--dur) var(--ease),
                background-color var(--dur) var(--ease);
}
.up_image:hover {
    border-color: var(--accent);
    background: var(--control-hover);
}
.up_image:active {
    background: var(--card-pressed);
    border-color: var(--accent);
}

.up_image #image {
    position: relative;
    top: -22px;
    width: 100px;
    height: 100px;
    outline: none;
    border: none;
    opacity: 0;
    cursor: pointer;
}

.up_image::before {
    display: inline-block;
    z-index: 1;
    content: '';
    position: relative;
    left: 25px;
    top: 35px;
    width: 50px;
    border-top: solid 2px var(--text-tertiary);
}
.up_image::after {
    display: inline-block;
    z-index: 1;
    content: '';
    position: relative;
    left: 50px;
    top: -95px;
    height: 50px;
    border-left: solid 2px var(--text-tertiary);
}
.up_image:hover::before,
.up_image:active::before {
    border-top-color: var(--accent);
}
.up_image:hover::after,
.up_image:active::after {
    border-left-color: var(--accent);
}

.preview {
    display: none;
    margin: 20px;
    text-align: center;
    height: 200px;
}
.preview img {
    height: 100%;
    max-width: 400px;
    border-radius: var(--radius-sm);
}

/* ---------- 悬浮按钮 ---------- */
.corner_button {
    z-index: 999;
    position: fixed;
    right: 16px;
    bottom: 64px;
    width: 36px;
    height: 36px;
    line-height: 34px;
    box-sizing: border-box;
    text-align: center;
    cursor: pointer;
    border: 1px solid var(--stroke-strong);
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
    transition: background-color var(--dur) var(--ease),
                transform var(--dur) var(--ease);
}
.corner_button:active {
    transform: scale(0.92);
    background-color: var(--card-pressed);
}
#theme {
    bottom: 105px;
}
#theme img {
    width: 60%;
    margin: 20%;
}
.dark #theme img {
    filter: invert(1.0);
}
/* ---------- 页脚 ---------- */
.copyright {
    position: fixed;
    bottom: 5px;
    z-index: -1;
    width: 100%;
    font-size: 12px;
    color: var(--text-tertiary);
    text-align: center;
}

/* ============================================================
   悬停态
   ============================================================ */
@media (any-hover: hover) {
    #form::-webkit-scrollbar,
    #list::-webkit-scrollbar {
        width: 12px;
        background-color: transparent;
    }
    #form::-webkit-scrollbar-thumb,
    #list::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.2);
        border: 4px solid transparent;
        background-clip: padding-box;
        border-radius: 8px;
        transition: background 0.1s;
    }
    #form:hover::-webkit-scrollbar-thumb,
    #list:hover::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.35);
        background-clip: padding-box;
        border-width: 3px;
    }
    .dark #form::-webkit-scrollbar-thumb,
    .dark #list::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.2);
        background-clip: padding-box;
    }
    .dark #form:hover::-webkit-scrollbar-thumb,
    .dark #list:hover::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.35);
        background-clip: padding-box;
    }

    #list .singlelink:hover {
        background-color: var(--card-hover);
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
    }

    .corner_button:hover {
        background-color: var(--card-hover);
    }
}
/* ============================================================
   Mica 背景层  — DSH 2026-10-23 追加
   替代原来的纯色 / 彩色光晕，贴合 WinUI 3 的窗口底
   ============================================================ */
:root{
    --mica-tint: rgba(0, 120, 212, 0.035);
    --mica-vignette: rgba(0, 0, 0, 0.022);
}
.dark{
    --mica-tint: rgba(96, 205, 255, 0.035);
    --mica-vignette: rgba(0, 0, 0, 0.22);
}
body, body.dark, .dark body{
    background-image:
        url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='160'%20height='160'%3E%3Cfilter%20id='n'%3E%3CfeTurbulence%20type='fractalNoise'%20baseFrequency='0.85'%20numOctaves='3'%20stitchTiles='stitch'/%3E%3CfeColorMatrix%20type='saturate'%20values='0'/%3E%3C/filter%3E%3Crect%20width='160'%20height='160'%20filter='url(%23n)'%20opacity='0.05'/%3E%3C/svg%3E"),
        radial-gradient(1100px 620px at 50% -18%, var(--mica-tint), transparent 72%),
        radial-gradient(140% 120% at 50% 50%, transparent 52%, var(--mica-vignette) 100%);
    background-attachment: fixed;
}