/* ============================================================
   世界观数据库 · 全屏档案终端(arc-terminal)
   ─────────────────────────────────────────────────────────────
   世界观:方舟回收档案库的【检索终端】——不是一页文档,是一台
   你打开的机器。左下角 ARCHIVE 按钮原地拉起(全屏覆盖层,
   不跳页);/world/ 的 SSR 页面就是这个终端的静态形态(分享/无 JS 回退)。

   三个回答:
   · 交互:开机序列(逐条解码入场) / 悬停条目解码抖动+信号格充能 /
     点条目就地展开著录详情(ECHO 提示在内) / 幕导航跳转 / Esc 退出;
   · 视觉:全屏深场 + 扫描线 + HUD 大字 + 噪点 vignette,
     时轴贯穿,条目右缘大百分比完整性;
   · 逻辑:目录(hud-toc)是正文目录;档案库是独立的世界观入口,
     两者并存,按钮直达。
   ============================================================ */
.arc-t {
    position: fixed;
    inset: 0;
    z-index: 210;                    /* 盖过 page-hud(200),低于磁吸光标(9999) */
    display: flex;
    flex-direction: column;
    /* ★ 不是白板:缺陷海透出来 —— 高透明底 + 大半径 blur,
       星点和等高线在界面后面隐约漂,终端像投在真空上的全息层 */
    background:
        radial-gradient(ellipse 120% 90% at 50% -10%,
            color-mix(in srgb, var(--accent, rgb(34, 211, 238)) 10%, transparent),
            transparent 62%),
        color-mix(in srgb, var(--theme) 55%, transparent);
    -webkit-backdrop-filter: blur(7px) saturate(1.15);
    backdrop-filter: blur(7px) saturate(1.15);
    /* 终端式启闭:不是渐隐 —— 是从左下角(按钮位置)【撑开】的一块
       屏幕面板:clip-path 从按钮处的小方块张开到全屏,
       内容跟着 clip 边缘显现,像接通了一块全息屏 */
    clip-path: circle(0px at calc(100vw - var(--arc-ox, 120px)) calc(100vh - var(--arc-oy, 90px)));
    visibility: hidden;
    pointer-events: none;
    transition: clip-path 0.52s cubic-bezier(0.22, 0.61, 0.36, 1),
        visibility 0s linear 0.52s;
    font-family: var(--hud-font, ui-monospace, SFMono-Regular, Menlo, monospace);
    color: var(--primary);
}

/* 竖向噪点栅格(全息投影的扫描结构), 极淡 */
.arc-t::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(0deg,
        transparent 0 3px,
        color-mix(in srgb, var(--accent, rgb(34, 211, 238)) 2.2%, transparent) 3px 4px);
    pointer-events: none;
    opacity: 0.6;
}

.arc-t.is-open {
    clip-path: circle(150vmax at calc(100vw - var(--arc-ox, 120px)) calc(100vh - var(--arc-oy, 90px)));
    visibility: visible;
    pointer-events: auto;
    transition: clip-path 0.52s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ★ 首开预热态:预热帧要把整块终端【真的画出来】,合成层/背景纹理/字形
   才能提前建好。visibility:hidden 会连 paint 一起跳过,只热到了 layout
   —— 首开那一帧才第一次真画,整笔首次绘制全堆在 clip 撑开的第一帧上,
   动画就被"卡没了"。此态配合 JS 的 opacity:0.01 内联:画了但看不见。 */
.arc-t.is-warm {
    visibility: visible;
    clip-path: circle(150vmax at 50% 50%);
    transition: none;
}

/* 扫描线:撤(不符合整体语言, 2026-10-11 用户定稿) */

/* ============ 顶栏:状态 + 退出(非对称:状态跑马居左, 退出贴右) ============ */
.arc-t__bar {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 14px 28px;
    border-bottom: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
    flex: 0 0 auto;
    background: color-mix(in srgb, var(--theme) 40%, transparent);
}

/* 品牌:SVG LOGO(三层弧线环, 缓慢自转=广播扩散)+ 双行文字 */
.arc-t__brand {
    display: flex;
    align-items: center;
    gap: 11px;
    white-space: nowrap;
    color: color-mix(in srgb, var(--accent) 75%, var(--primary));
}

.arc-t__logo {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    animation: arc-logo-spin 26s linear infinite;
}

@keyframes arc-logo-spin {
    to { transform: rotate(360deg); }
}

.arc-t__brand-t {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.15;
}

.arc-t__brand-t b {
    font-size: 0.86em;
    letter-spacing: 0.3em;
    font-weight: 700;
}

.arc-t__brand-t i {
    font-style: normal;
    font-size: 0.6em;
    letter-spacing: 0.24em;
    color: var(--secondary);
}

/* EID 自检著录:双行交错滚动(上行左行, 下行右行), 面板式观感 */
.arc-t__feed {
    position: relative;
    flex: 1 1 auto;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    overflow: hidden;
    padding: 4px 0;
    border-left: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
    padding-left: 16px;
    mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

.arc-t__feed i {
    display: inline-block;
    white-space: nowrap;
    font-style: normal;
    font-size: 0.62em;
    letter-spacing: 0.2em;
    color: var(--secondary);
}

.arc-t__feed-l { animation: arc-feed-l 46s linear infinite; }
.arc-t__feed-r { animation: arc-feed-r 52s linear infinite; opacity: 0.75; }

@keyframes arc-feed-l {
    0%   { transform: translateX(12%); }
    100% { transform: translateX(-100%); }
}

@keyframes arc-feed-r {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(12%); }
}

.arc-t__clock {
    font-size: 0.72em;
    letter-spacing: 0.2em;
    color: var(--secondary);
    white-space: nowrap;
}

.arc-t__close {
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
    background: transparent;
    color: var(--primary);
    font-family: inherit;
    font-size: 0.72em;
    letter-spacing: 0.26em;
    padding: 7px 16px;
    cursor: pointer;
    border-radius: 2px;
    transition: background-color 0.16s ease, color 0.16s ease;
}

.arc-t__close:hover {
    background: color-mix(in srgb, var(--accent) 14%, transparent);
    color: color-mix(in srgb, var(--accent) 60%, var(--primary));
}

/* ============ 主区:左幕导航 + 右档案流 ============ */
.arc-t__main {
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: 0;
}

/* ---- 幕导航 ---- */
.arc-t__nav {
    border-right: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
    padding: 26px 0 20px 28px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.arc-t__nav-k {
    font-size: 0.66em;
    letter-spacing: 0.32em;
    color: var(--secondary);
    margin-bottom: 12px;
}

.arc-t__nav-i {
    position: relative;
    border: 0;
    background: transparent;
    text-align: left;
    font-family: inherit;
    color: var(--secondary);
    font-size: 0.82em;
    letter-spacing: 0.08em;
    padding: 9px 10px 9px 22px;
    cursor: pointer;
    border-left: 2px solid transparent;
    transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.arc-t__nav-i::before {
    content: attr(data-no);
    display: block;
    font-size: 0.78em;
    letter-spacing: 0.24em;
    color: color-mix(in srgb, var(--accent) 55%, var(--secondary));
    margin-bottom: 2px;
}

.arc-t__nav-i:hover {
    color: var(--primary);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
}

.arc-t__nav-i.is-on {
    color: var(--primary);
    border-left-color: var(--accent, rgb(34, 211, 238));
    background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.arc-t__nav-i b {
    display: block;
    font-weight: 600;
}

.arc-t__nav-i span {
    display: block;
    font-size: 0.8em;
    letter-spacing: 0.12em;
    color: var(--secondary);
    margin-top: 2px;
}

/* ---- 档案流 ---- */
.arc-t__flow {
    overflow-y: auto;
    padding: 26px 36px 48px;
    scroll-behavior: smooth;
}

/* 细滚动条, 与全站终端语言一致 */
.arc-t__flow::-webkit-scrollbar {
    width: 6px;
}

.arc-t__flow::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--accent) 30%, transparent);
    border-radius: 3px;
}

.arc-t__flow::-webkit-scrollbar-track {
    background: transparent;
}

.arc-t__flow::after {
    content: "";
    display: block;
    height: 8vh;
}

.arc-act-t {
    margin-bottom: 34px;
}

.arc-act-t__head {
    display: flex;
    align-items: baseline;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1px dashed color-mix(in srgb, var(--accent) 24%, transparent);
}

.arc-act-t__act {
    font-size: 0.64em;
    letter-spacing: 0.3em;
    color: color-mix(in srgb, var(--accent) 72%, var(--primary));
    border: 1px solid color-mix(in srgb, var(--accent) 34%, transparent);
    padding: 3px 9px;
    border-radius: 2px;
}

.arc-act-t__name {
    font-size: 1.05em;
    letter-spacing: 0.06em;
    margin: 0;
    font-weight: 700;
}

.arc-act-t__note {
    font-size: 0.7em;
    letter-spacing: 0.16em;
    color: var(--secondary);
}

/* ---- 档案条目 ---- */
.arc-t__list {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.arc-it {
    position: relative;
    display: grid;
    grid-template-columns: 56px 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 11px 16px 11px 12px;
    border: 1px solid var(--border, rgba(238, 238, 238, 0.4));
    border-left: 2px solid color-mix(in srgb, var(--accent) 40%, transparent);
    border-radius: 3px;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    color: var(--primary);
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--accent) 3%, transparent),
            transparent 45%);
    transition: border-color 0.16s ease, transform 0.16s ease, background-color 0.16s ease;
}

.arc-it:hover {
    border-left-color: var(--accent, rgb(34, 211, 238));
    transform: translateX(4px);
    background-color: color-mix(in srgb, var(--accent) 6%, transparent);
}

.arc-it__no {
    font-size: 1.25em;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: color-mix(in srgb, var(--accent) 62%, var(--primary));
    text-align: center;
}

.arc-it__body {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.arc-it__title {
    font-weight: 600;
    font-size: 0.94em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.arc-it:hover .arc-it__title {
    color: color-mix(in srgb, var(--accent) 55%, var(--primary));
}

.arc-it__meta {
    display: flex;
    gap: 12px;
    font-size: 0.66em;
    letter-spacing: 0.12em;
    color: var(--secondary);
}

/* 右缘完整性 */
.arc-it__int {
    font-size: 1.4em;
    font-weight: 600;
    color: color-mix(in srgb, var(--accent) 58%, var(--primary));
    text-align: right;
    line-height: 1;
}

.arc-it__int::before {
    content: "INTEGRITY";
    display: block;
    font-size: 0.4em;
    letter-spacing: 0.3em;
    color: var(--secondary);
    font-weight: 400;
    margin-bottom: 3px;
}

/* ---- 就地展开的著录详情 ---- */
.arc-it__detail {
    grid-column: 1 / -1;
    display: none;
    padding: 14px 6px 8px;
    border-top: 1px dashed color-mix(in srgb, var(--accent) 22%, transparent);
    font-size: 0.74em;
    letter-spacing: 0.1em;
    color: var(--secondary);
}

/* 著录区行距:内容块之间留呼吸 */
.arc-it__detail > div {
    margin-bottom: 4px;
}

/* 「ECHO 解密提示」按钮:带对话图标, 不再是随手一行字 */
.arc-it__ask {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
    background: color-mix(in srgb, var(--accent) 5%, transparent);
    color: color-mix(in srgb, var(--accent) 72%, var(--primary));
    font-family: inherit;
    font-size: 0.92em;
    letter-spacing: 0.2em;
    padding: 7px 16px;
    border-radius: 2px;
    cursor: pointer;
    transition: background-color 0.16s ease, border-color 0.16s ease;
}

.arc-it__ask svg {
    width: 15px;
    height: 15px;
    flex: 0 0 auto;
    opacity: 0.85;
}

.arc-it__ask:hover {
    background: color-mix(in srgb, var(--accent) 13%, transparent);
    border-color: var(--accent, rgb(34, 211, 238));
}

.arc-it.is-open .arc-it__detail {
    display: block;
    animation: arc-detail-in 0.26s ease;
}

@keyframes arc-detail-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: none; }
}

.arc-it__detail b {
    color: color-mix(in srgb, var(--accent) 60%, var(--primary));
    font-weight: 600;
}

/* ECHO 的提示区:她在打字,不是印出来的字段 */
.arc-it__hint {
    margin-top: 8px;
    color: color-mix(in srgb, var(--accent) 70%, var(--primary));
    letter-spacing: 0.06em;
}

/* ---- 解密门:未解密档案的著录区 ---- */
.arc-it__gate-q {
    font-size: 0.92em;
    letter-spacing: 0.08em;
}

.arc-it__gate-q b {
    color: color-mix(in srgb, var(--accent) 75%, var(--primary));
    letter-spacing: 0.22em;
    margin-right: 6px;
}

.arc-it__gate-tip {
    color: var(--secondary);
    opacity: 0.75;
    font-size: 0.9em;
}

.arc-it__gate-row {
    display: flex;
    gap: 8px;
    margin-top: 9px;
}

.arc-it__gate-in {
    flex: 0 1 220px;
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
    background: transparent;
    color: var(--primary);
    font-family: inherit;
    font-size: 0.88em;
    letter-spacing: 0.1em;
    padding: 5px 10px;
    border-radius: 2px;
    outline: none;
}

.arc-it__gate-in:focus {
    border-color: var(--accent, rgb(34, 211, 238));
}

.arc-it__gate-go {
    border: 1px solid color-mix(in srgb, var(--accent) 44%, transparent);
    background: color-mix(in srgb, var(--accent) 10%, transparent);
    color: color-mix(in srgb, var(--accent) 78%, var(--primary));
    font-family: inherit;
    font-size: 0.86em;
    letter-spacing: 0.26em;
    padding: 5px 14px;
    border-radius: 2px;
    cursor: pointer;
    transition: background-color 0.16s ease;
}

.arc-it__gate-go:hover {
    background: color-mix(in srgb, var(--accent) 20%, transparent);
}

.arc-t__gate-err {
    margin-top: 6px;
    color: #ff8fb1;
    font-size: 0.85em;
    letter-spacing: 0.1em;
}

/* 答错抖动 */
.arc-it__gate-in.is-err {
    animation: arc-gate-shake 0.3s ease;
    border-color: #ff8fb1;
}

@keyframes arc-gate-shake {
    0%, 100% { transform: translateX(0); }
    30%      { transform: translateX(-4px); }
    60%      { transform: translateX(4px); }
}

/* 终端打开期间锁背后页面滚动(body 定位法, 与 surge-lock 同款) */
body.arc-t-lock {
    position: fixed;
    left: 0;
    right: 0;
    overflow: hidden;
}

/* 锁定/解锁卡的状态语言 */
.arc-it.is-locked {
    border-left-color: #ff8fb1;
}

.arc-it.is-locked .arc-it__no {
    color: color-mix(in srgb, #ff8fb1 60%, var(--primary));
}

.arc-it.is-locked::after {
    content: "ENC";
    position: absolute;
    right: 10px;
    top: 6px;
    font-size: 0.55em;
    letter-spacing: 0.3em;
    color: #ff8fb1;
    opacity: 0.85;
}

.arc-it.is-unlocked .arc-it__detail {
    animation: arc-detail-in 0.26s ease;
}

/* 牢骚行与提示行分行;提示行带光标尾随(打完摘除) */
.arc-it__hint-line {
    margin-top: 5px;
    color: var(--primary);
    opacity: 0.92;
}

.arc-it__hint-line:not(:empty)::after {
    content: "▌";
    margin-left: 2px;
    color: color-mix(in srgb, var(--accent) 70%, transparent);
    animation: arc-caret 0.9s steps(2) infinite;
}

.arc-it__hint-line.is-done::after {
    content: "";
    animation: none;
}

@keyframes arc-caret {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

.arc-it__go {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 12px;
    margin-left: 14px;
    color: var(--accent, rgb(34, 211, 238));
    text-decoration: none;
    letter-spacing: 0.2em;
    font-size: 0.95em;
    padding: 7px 14px;
    border: 1px solid transparent;
    border-radius: 2px;
    transition: border-color 0.16s ease, background-color 0.16s ease;
}

.arc-it__go:hover {
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border-bottom-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

/* ============ 开机序列:条目解码入场 ============ */
.arc-t.is-open .arc-it {
    animation: arc-decode 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
    animation-delay: calc(var(--d, 0) * 1ms);
}

@keyframes arc-decode {
    0% {
        opacity: 0;
        transform: translateX(-10px);
        filter: blur(3px);
        clip-path: inset(0 100% 0 0);
    }
    60% {
        filter: blur(0.5px);
    }
    100% {
        opacity: 1;
        transform: none;
        filter: none;
        clip-path: inset(0 0 0 0);
    }
}

/* ============ 手机 ============ */
@media (max-width: 900px) {
    .arc-t__main {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }
    .arc-t__nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 6px;
        padding: 12px 16px;
        border-right: 0;
        border-bottom: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
        overflow-x: auto;
    }
    .arc-t__nav-k {
        display: none;
    }
    .arc-t__nav-i {
        border-left: 0;
        border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
        border-radius: 3px;
        padding: 6px 10px;
    }
    .arc-t__nav-i b {
        font-size: 0.9em;
    }
    .arc-t__nav-i span {
        display: none;
    }
    .arc-t__flow {
        padding: 18px 16px 40px;
    }
    .arc-it {
        grid-template-columns: 44px 1fr;
        gap: 10px;
    }
    .arc-it__int {
        grid-column: 2;
        text-align: left;
        font-size: 0.9em;
        order: 3;
    }
    .arc-it__int::before {
        display: inline;
        margin-right: 8px;
    }
}

/* ============ reduced-motion ============ */
@media (prefers-reduced-motion: reduce) {
    .arc-t,
    .arc-t.is-open {
        transition: none;
        clip-path: none;
        visibility: visible;
    }
    .arc-t {
        visibility: hidden;
    }
    .arc-t.is-open {
        visibility: visible;
    }
    .arc-t.is-open .arc-it,
    .arc-it.is-open .arc-it__detail {
        animation: none;
    }
}