/* ============================================================
   KERUI.REV — 逆向实验室主题 v4
   设计语言：暗色调试器。荧光绿 + 琥珀双强调，等宽字做结构注释，
   无衬线字做正文阅读。所有组件共享「窗格 pane」质感。
   ============================================================ */

/* ---------- 0. Tokens ---------- */

:root {
    /* 背景层级：由深到浅 */
    --bg0: #05080f;
    --bg1: #0a101c;
    --bg2: #0e1626;
    --bg3: #142137;

    /* 描边 */
    --line: rgba(126, 168, 255, 0.13);
    --line-2: rgba(126, 168, 255, 0.26);

    /* 文字 */
    --ink: #d9e4f3;
    --ink-2: #93a6c4;
    --ink-3: #55688399;
    --ink-3s: #556883;

    /* 强调 */
    --green: #3fe08d;
    --green-dim: #2aa565;
    --green-glow: rgba(63, 224, 141, 0.16);
    --amber: #ffbe5c;
    --red: #ff6b81;
    --cyan: #62d3ff;

    --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", "Fira Code", Menlo, Consolas, "Liberation Mono", "PingFang SC", monospace;

    --radius: 10px;
    --radius-s: 6px;
    --container: 1200px;
    --header-h: 64px;

    --shadow-1: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-2: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 18px 50px rgba(0, 0, 0, 0.5);

    --ease: cubic-bezier(0.22, 0.7, 0.3, 1);
}

/* ---------- 1. Reset / Base ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--ink);
    background-color: var(--bg0);
    background-image:
        radial-gradient(rgba(148, 190, 255, 0.045) 1px, transparent 1.4px);
    background-size: 30px 30px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    line-height: 1.3;
    font-weight: 700;
    color: var(--ink);
}

p {
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.18s var(--ease);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

button {
    font-family: inherit;
}

::selection {
    background: var(--green);
    color: #04140b;
}

:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
    border-radius: 3px;
}

::-webkit-scrollbar {
    width: 11px;
    height: 11px;
}

::-webkit-scrollbar-track {
    background: var(--bg0);
}

::-webkit-scrollbar-thumb {
    background: #1d2b45;
    border-radius: 8px;
    border: 2px solid var(--bg0);
}

::-webkit-scrollbar-thumb:hover {
    background: #2a3c5e;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 300;
    padding: 10px 18px;
    background: var(--green);
    color: #04140b;
    font-weight: 600;
}

.skip-link:focus {
    left: 12px;
    top: 12px;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

/* ---------- 2. 公共原子 ---------- */

/* 汇编注释式小标：; LABEL */
.asm {
    display: inline-flex;
    align-items: center;
    gap: 0.55em;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    color: var(--green);
    text-transform: uppercase;
}

.asm::before {
    content: ";";
    opacity: 0.7;
}

/* 十六进制地址装饰 */
.addr {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: var(--ink-3s);
}

.mono {
    font-family: var(--font-mono);
}

.muted {
    color: var(--ink-2);
}

/* 窗格：所有卡片的基底 */
.pane {
    background: linear-gradient(180deg, rgba(148, 190, 255, 0.035), rgba(148, 190, 255, 0) 38%), var(--bg2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-1);
}

.pane-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    color: var(--ink-3s);
    user-select: none;
}

.pane-bar .dots {
    display: inline-flex;
    gap: 5px;
}

.pane-bar .dots i {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #233350;
}

.pane-bar .dots i:nth-child(1) {
    background: #ff5f57;
}

.pane-bar .dots i:nth-child(2) {
    background: #febc2e;
}

.pane-bar .dots i:nth-child(3) {
    background: #28c840;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    padding: 0.72em 1.5em;
    border: 1px solid transparent;
    border-radius: var(--radius-s);
    font-family: var(--font-mono);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: transform 0.16s var(--ease), box-shadow 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--green);
    color: #04140b;
}

.btn-primary::before {
    content: "▸";
    font-size: 0.85em;
}

.btn-primary:hover {
    background: #5ff0a5;
    box-shadow: 0 0 0 1px var(--green), 0 6px 26px var(--green-glow);
}

.btn-ghost {
    border-color: var(--line-2);
    color: var(--ink);
    background: transparent;
}

.btn-ghost:hover {
    border-color: var(--green);
    color: var(--green);
    background: rgba(63, 224, 141, 0.06);
}

.btn-sm {
    padding: 0.5em 1.1em;
    font-size: 0.84rem;
}

/* 芯片 / 徽标 */
.chip {
    display: inline-flex;
    align-items: center;
    padding: 0.14em 0.68em;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.05em;
    color: var(--ink-2);
    white-space: nowrap;
}

.chip-green {
    border-color: rgba(63, 224, 141, 0.4);
    color: var(--green);
    background: rgba(63, 224, 141, 0.07);
}

.chip-amber {
    border-color: rgba(255, 190, 92, 0.4);
    color: var(--amber);
    background: rgba(255, 190, 92, 0.07);
}

/* 区块 */
.sec {
    padding: clamp(4rem, 8vw, 6.2rem) 0;
    position: relative;
}

.sec-alt {
    background: var(--bg1);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.sec-head {
    max-width: 720px;
    margin-bottom: clamp(2rem, 4vw, 3rem);
}

.sec-head h2 {
    font-size: clamp(1.5rem, 3.2vw, 2.1rem);
    letter-spacing: 0.01em;
    margin: 0.55rem 0 0.6rem;
}

.sec-head .sub {
    color: var(--ink-2);
    font-size: 1.02rem;
}

.sec-head-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* 光标 */
.caret {
    display: inline-block;
    width: 0.58em;
    height: 1.12em;
    margin-left: 2px;
    vertical-align: text-bottom;
    background: var(--green);
    animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* ---------- 3. 顶部系统条 ---------- */

.syslog {
    background: var(--bg0);
    border-bottom: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.03em;
    color: var(--ink-2);
}

.syslog-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 32px;
}

.syslog-list {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    white-space: nowrap;
    overflow: hidden;
}

.syslog .k {
    color: var(--ink-3s);
}

.syslog a:hover {
    color: var(--green);
}

.syslog .ok {
    color: var(--green);
}

/* ---------- 4. 站点头部 ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 120;
    background: rgba(5, 8, 15, 0.86);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: box-shadow 0.25s var(--ease);
}

.site-header.is-scrolled {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.navbar {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: var(--header-h);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.brand img {
    height: 32px;
    width: auto;
    background: #e8eef8;
    padding: 3px 8px;
    border-radius: 7px;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 7px;
    background: linear-gradient(135deg, var(--green), #19b877);
    color: #04140b;
    font-size: 0.8rem;
    font-weight: 800;
    box-shadow: 0 0 18px var(--green-glow);
}

.brand .tld {
    color: var(--green);
}

.main-nav {
    margin-left: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.nav-item {
    position: relative;
}

.nav-item > a,
.nav-item > .nav-label {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    padding: 0.5em 0.85em;
    font-size: 0.95rem;
    color: var(--ink-2);
    border-radius: var(--radius-s);
    cursor: pointer;
    user-select: none;
    transition: color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.nav-item > a:hover,
.nav-item > .nav-label:hover {
    color: var(--ink);
    background: rgba(148, 190, 255, 0.06);
}

.nav-item.current > a,
.nav-item.current > .nav-label {
    color: var(--green);
}

.nav-item.current > a::before,
.nav-item.current > .nav-label::before {
    content: "▸";
    font-family: var(--font-mono);
    font-size: 0.72em;
    color: var(--green);
}

.nav-item.has-sub > .nav-label::after {
    content: "";
    width: 7px;
    height: 7px;
    margin-left: 0.15em;
    border-right: 1.6px solid currentColor;
    border-bottom: 1.6px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform 0.18s var(--ease);
}

.sub-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 200px;
    padding: 0.5rem;
    background: var(--bg2);
    border: 1px solid var(--line-2);
    border-radius: var(--radius);
    box-shadow: var(--shadow-2);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
}

.sub-menu::before {
    content: "";
    position: absolute;
    top: -11px;
    left: 0;
    right: 0;
    height: 12px;
}

.nav-item.has-sub:hover .sub-menu,
.nav-item.has-sub:focus-within .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.sub-menu li a {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.55em 0.9em;
    border-radius: var(--radius-s);
    font-size: 0.92rem;
    color: var(--ink-2);
    white-space: nowrap;
}

.sub-menu li a::before {
    content: "./";
    font-family: var(--font-mono);
    font-size: 0.8em;
    color: var(--ink-3s);
    transition: color 0.15s;
}

.sub-menu li a:hover {
    background: rgba(63, 224, 141, 0.08);
    color: var(--ink);
}

.sub-menu li a:hover::before {
    color: var(--green);
}

.sub-toggle {
    display: none;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.icon-btn {
    display: inline-grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    background: transparent;
    color: var(--ink-2);
    cursor: pointer;
    transition: border-color 0.18s, color 0.18s, background-color 0.18s;
}

.icon-btn:hover {
    border-color: var(--green);
    color: var(--green);
}

.icon-btn svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.nav-toggle {
    display: none;
}

.nav-toggle .bars,
.nav-toggle .bars::before,
.nav-toggle .bars::after {
    display: block;
    width: 17px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    position: relative;
    transition: transform 0.2s var(--ease), top 0.2s var(--ease);
}

.nav-toggle .bars::before,
.nav-toggle .bars::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle .bars::before {
    top: -5.5px;
}

.nav-toggle .bars::after {
    top: 5.5px;
}

body.nav-open .nav-toggle .bars {
    transform: rotate(45deg);
}

body.nav-open .nav-toggle .bars::before {
    top: 0;
    transform: rotate(-90deg);
}

body.nav-open .nav-toggle .bars::after {
    top: 0;
    opacity: 0;
}

/* 搜索面板 */
.search-panel {
    max-height: 0;
    overflow: hidden;
    border-top: 0 solid transparent;
    transition: max-height 0.26s var(--ease);
    background: var(--bg1);
}

.search-panel.open {
    max-height: 90px;
    border-top: 1px solid var(--line);
}

.search-form {
    display: flex;
    gap: 0.6rem;
    padding: 0.9rem 0;
}

.search-form input {
    flex: 1;
    min-width: 0;
    padding: 0.6em 1em;
    background: var(--bg0);
    border: 1px solid var(--line-2);
    border-radius: var(--radius-s);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.95rem;
}

.search-form input::placeholder {
    color: var(--ink-3s);
}

.search-form input:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 110;
    background: rgba(3, 5, 10, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s;
}

body.nav-open .nav-backdrop {
    opacity: 1;
    visibility: visible;
}

/* ---------- 5. 首页 Hero ---------- */

.hero {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(900px 480px at 82% -10%, rgba(63, 224, 141, 0.09), transparent 62%),
        radial-gradient(700px 420px at -8% 110%, rgba(98, 211, 255, 0.06), transparent 60%),
        var(--bg0);
}

.hero::after {
    /* 扫描线 */
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.014) 0 1px, transparent 1px 3px);
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
    padding-top: clamp(3.4rem, 7vw, 5.6rem);
    padding-bottom: clamp(3.4rem, 7vw, 5.6rem);
}

.hero-prompt {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-2);
    margin-bottom: 1.1rem;
    min-height: 1.4em;
}

.hero-prompt .p {
    color: var(--green);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.3rem);
    line-height: 1.18;
    letter-spacing: 0.01em;
    margin: 0 0 1.1rem;
}

.hero h1 .grad {
    background: linear-gradient(92deg, var(--green) 10%, #9bffcf 55%, var(--cyan));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-sub {
    max-width: 34em;
    color: var(--ink-2);
    font-size: 1.06rem;
    margin-bottom: 1.6rem;
}

.hero-cta {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-bottom: 1.8rem;
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1.6rem;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    color: var(--ink-2);
}

.hero-points li::before {
    content: "[+] ";
    color: var(--green);
}

/* 终端窗格 */
.terminal {
    position: relative;
    font-family: var(--font-mono);
    font-size: 0.86rem;
    line-height: 1.9;
}

.terminal::before {
    /* 背后的十六进制底纹 */
    content: "0040 55 8B EC 83 EC 40 53 56 57 8D 7D C0 B9 10 00\A0050 00 00 B8 CC CC CC CC F3 AB E8 2A 01 00 00 68\A0060 00 40 41 00 E8 C1 FE FF FF 83 C4 04 8B F0 85";
    white-space: pre;
    position: absolute;
    top: -2.6rem;
    right: -1.2rem;
    z-index: -1;
    max-width: 106%;
    overflow: hidden;
    font-size: 0.66rem;
    line-height: 2.1;
    letter-spacing: 0.12em;
    color: rgba(126, 168, 255, 0.08);
    user-select: none;
}

.terminal-pane {
    overflow: hidden;
}

.terminal-body {
    padding: 1.1rem 1.25rem 1.3rem;
}

.terminal .tl {
    white-space: pre-wrap;
    word-break: break-all;
}

.terminal .p {
    color: var(--green);
}

.terminal .k {
    color: var(--cyan);
}

.terminal .a {
    color: var(--amber);
}

.terminal .c {
    color: var(--ink-3s);
}

.terminal .ok {
    color: var(--green);
}

/* 寄存器带（数据指标） */
.reg-band {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--line);
    background: rgba(10, 16, 28, 0.72);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.reg-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.reg {
    padding: 1.35rem 1rem 1.3rem;
    text-align: center;
    border-left: 1px solid var(--line);
}

.reg:first-child {
    border-left: 0;
}

.reg strong {
    display: block;
    font-family: var(--font-mono);
    font-size: clamp(1.6rem, 3.4vw, 2.3rem);
    font-weight: 700;
    color: var(--ink);
    line-height: 1.15;
}

.reg strong em {
    font-style: normal;
    font-size: 0.6em;
    color: var(--green);
    margin-left: 2px;
}

.reg span {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    color: var(--ink-3s);
}

/* ---------- 6. 优势窗格 ---------- */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1rem;
    counter-reset: feat;
}

.feature {
    position: relative;
    padding: 1.5rem 1.4rem 1.45rem;
    counter-increment: feat;
    transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.feature:hover {
    transform: translateY(-4px);
    border-color: rgba(63, 224, 141, 0.45);
    box-shadow: 0 14px 44px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(63, 224, 141, 0.2);
}

.feature::before {
    content: "[" counter(feat, decimal-leading-zero) "]";
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    color: var(--green);
}

.feature::after {
    content: "0x0040" counter(feat) "0";
    position: absolute;
    top: 1.5rem;
    right: 1.3rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--ink-3);
}

.feature h3 {
    font-size: 1.08rem;
    margin: 0.65rem 0 0.45rem;
}

.feature p {
    color: var(--ink-2);
    font-size: 0.93rem;
}

/* ---------- 7. 课程阶段流水线 ---------- */

.pipeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.1rem;
}

.stage {
    position: relative;
    display: flex;
    flex-direction: column;
    transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.stage:hover {
    transform: translateY(-4px);
    border-color: rgba(63, 224, 141, 0.45);
}

.stage:not(:last-child)::after {
    content: "─▶";
    position: absolute;
    top: 50%;
    right: -1.18rem;
    transform: translateY(-50%);
    z-index: 2;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--green-dim);
}

.stage-body {
    padding: 1.15rem 1.2rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    flex: 1;
}

.stage-body h3 {
    font-size: 1.05rem;
}

.stage-body p {
    color: var(--ink-2);
    font-size: 0.9rem;
    flex: 1;
}

.stage-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.3rem;
}

.stage-tags li {
    padding: 0.1em 0.6em;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--ink-2);
}

.sec-foot {
    margin-top: 2.4rem;
    text-align: center;
}

/* ---------- 8. 就业流水（进程表） ---------- */

.proc-pane {
    overflow: hidden;
}

.proc-head,
.proc-row {
    display: grid;
    grid-template-columns: 1.1fr 1.6fr 1.3fr 0.8fr;
    gap: 1rem;
    align-items: center;
    padding: 0.66rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.proc-head {
    border-bottom: 1px solid var(--line);
    color: var(--ink-3s);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
}

.proc-scroll {
    max-height: 396px;
    overflow: hidden;
    position: relative;
}

.proc-scroll::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 54px;
    background: linear-gradient(180deg, transparent, var(--bg2));
    pointer-events: none;
}

.proc-list {
    animation: proc-roll 36s linear infinite;
}

.proc-scroll:hover .proc-list {
    animation-play-state: paused;
}

@keyframes proc-roll {
    to {
        transform: translateY(-50%);
    }
}

.proc-row {
    border-bottom: 1px dashed rgba(126, 168, 255, 0.08);
    color: var(--ink-2);
}

.proc-row .who {
    color: var(--ink);
}

.proc-row .who::before {
    content: "▸ ";
    color: var(--green);
}

.proc-row .pay {
    color: var(--amber);
    text-align: right;
}

/* ---------- 9. 动态提交日志 ---------- */

.gitlog {
    position: relative;
    padding-left: 1.4rem;
}

.gitlog::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: linear-gradient(180deg, var(--green-dim), rgba(126, 168, 255, 0.12));
}

.commit {
    position: relative;
    padding: 0.85rem 0 0.85rem 1rem;
    border-bottom: 1px dashed rgba(126, 168, 255, 0.08);
}

.commit::before {
    content: "";
    position: absolute;
    left: -1.4rem;
    top: 1.42rem;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--bg0);
    border: 2px solid var(--green-dim);
    transition: border-color 0.18s, box-shadow 0.18s;
}

.commit:hover::before {
    border-color: var(--green);
    box-shadow: 0 0 12px var(--green-glow);
}

.commit-meta {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--ink-3s);
    margin-bottom: 0.25rem;
}

.commit-meta .hash {
    color: var(--amber);
}

.commit h3 {
    font-size: 1.02rem;
    font-weight: 600;
}

.commit h3 a:hover {
    color: var(--green);
}

.commit p {
    color: var(--ink-2);
    font-size: 0.9rem;
    margin-top: 0.3rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------- 10. 学员之声（注释块） ---------- */

/* 三条反馈 + 一张 CTA 卡，桌面 2x2 */
.quote-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.1rem;
}

.quote {
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1.45rem;
    position: relative;
}

.quote::before {
    content: "/*";
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--green);
    line-height: 1;
}

.quote blockquote {
    margin: 0.8rem 0 1rem;
    color: var(--ink-2);
    font-size: 0.95rem;
    flex: 1;
}

.quote-who {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.quote-who::before {
    content: "*/";
    color: var(--green);
    margin-right: 0.2rem;
}

.quote-who strong {
    color: var(--ink);
}

.quote-who span {
    color: var(--ink-3s);
    font-size: 0.9em;
}

.quote-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 0.7rem;
    padding: 1.5rem 1.45rem;
    border: 1px dashed var(--line-2);
    border-radius: var(--radius);
    background: transparent;
}

.quote-cta h3 {
    font-size: 1.1rem;
}

.quote-cta p {
    color: var(--ink-2);
    font-size: 0.92rem;
}

/* ---------- 10b. 首页扩展区块 ---------- */

.sec-tight {
    padding: clamp(1.6rem, 3vw, 2.6rem) 0 0;
}

/* 招生海报轮播：pane 内淡入淡出帧 */
.broadcast .pane-bar {
    justify-content: flex-start;
}

.bc-status {
    margin-left: auto;
    color: var(--green);
    font-size: 0.68rem;
    letter-spacing: 0.18em;
    animation: blink 2.4s steps(1) infinite;
}

.bc-frames {
    position: relative;
    aspect-ratio: 3 / 1;
    min-height: 180px;
    max-height: 420px;
    overflow: hidden;
    border-radius: 0 0 var(--radius) var(--radius);
    background: #05080f;
}

.bc-frame {
    position: absolute;
    inset: 0;
    margin: 0;
    opacity: 0;
    transition: opacity 0.9s var(--ease);
    pointer-events: none;
}

.bc-frame.current {
    opacity: 1;
    pointer-events: auto;
}

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

.bc-dots {
    position: absolute;
    right: 1rem;
    bottom: 0.8rem;
    display: flex;
    gap: 0.45rem;
    z-index: 2;
}

.bc-dots button {
    width: 22px;
    height: 4px;
    border: 0;
    border-radius: 2px;
    background: rgba(230, 240, 255, 0.28);
    cursor: pointer;
    transition: background 0.2s;
}

.bc-dots button.current {
    background: var(--green);
}

/* 科锐介绍：正文窗格 + 亮点卡 */
.about-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 1.1rem;
    align-items: start;
}

.about-body {
    padding: 1.5rem 1.6rem;
    color: var(--ink-2);
    font-size: 0.99rem;
    line-height: 1.9;
}

.about-body p+p {
    margin-top: 0.9em;
}

.about-body p::before {
    content: "> ";
    font-family: var(--font-mono);
    color: var(--green);
    opacity: 0.75;
}

.hl-stack {
    display: grid;
    gap: 1.1rem;
}

.hl {
    position: relative;
    padding: 1.15rem 1.3rem 1.15rem 3.1rem;
    counter-increment: hl;
}

.hl-stack {
    counter-reset: hl;
}

.hl::before {
    content: "0" counter(hl);
    position: absolute;
    left: 1.1rem;
    top: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--green);
    opacity: 0.85;
}

.hl h3 {
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

.hl p {
    color: var(--ink-2);
    font-size: 0.88rem;
}

/* 毕业后从业方向：职位标签云 */
.careers {
    margin-top: 2rem;
}

.careers-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: var(--ink-2);
    margin-bottom: 0.9rem;
}

.careers-title .p {
    color: var(--green);
}

.careers-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.careers-cloud li {
    padding: 0.34em 0.9em;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--ink-2);
    transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.careers-cloud li:hover {
    border-color: rgba(63, 224, 141, 0.5);
    color: var(--green);
    transform: translateY(-2px);
}

/* 问题答疑 */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.1rem;
}

.faq {
    padding: 1.35rem 1.45rem;
}

.faq h3 {
    display: flex;
    gap: 0.55rem;
    align-items: baseline;
    font-size: 1.02rem;
    margin-bottom: 0.55rem;
}

.faq-mark {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--amber);
    flex: none;
}

.faq p {
    color: var(--ink-2);
    font-size: 0.92rem;
    line-height: 1.85;
}

/* 报名流程：五步进度条 */
.enroll-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.1rem;
    counter-reset: step;
    list-style: none;
    margin: 0;
    padding: 0;
}

.enroll-steps li {
    position: relative;
    counter-increment: step;
    padding: 2.6rem 1.1rem 1.2rem;
    background: linear-gradient(180deg, rgba(148, 190, 255, 0.035), rgba(148, 190, 255, 0) 38%), var(--bg2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font-size: 0.98rem;
    color: var(--ink);
    box-shadow: var(--shadow-1);
}

.enroll-steps li::before {
    content: "step_0" counter(step);
    position: absolute;
    top: 0.85rem;
    left: 1.1rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--green);
}

.enroll-steps li::after {
    content: "→";
    position: absolute;
    right: -1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ink-3s);
    font-family: var(--font-mono);
    z-index: 1;
}

.enroll-steps li:last-child::after {
    content: none;
}

/* 宣传视频 */
.video-pane {
    overflow: hidden;
}

.video-pane video {
    display: block;
    width: 100%;
    max-height: 620px;
    background: #000;
}

/* 合作伙伴 logo 墙：logo 原图为白底，垫白色内衬 */
.partners-strip {
    display: grid;
    gap: 0.9rem;
    padding: 1.4rem;
    background: #f4f7fb;
    border-radius: 0 0 var(--radius) var(--radius);
}

.partners-strip img {
    display: block;
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
    mix-blend-mode: multiply;
}

/* ---------- 11. CTA 带 ---------- */

.cta-band {
    padding: clamp(3.4rem, 7vw, 5.2rem) 0;
    border-top: 1px solid var(--line);
    background:
        radial-gradient(720px 320px at 50% 120%, rgba(63, 224, 141, 0.1), transparent 65%),
        var(--bg1);
}

.cta-box {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    padding: clamp(1.8rem, 4vw, 2.8rem) clamp(1.4rem, 4vw, 2.6rem);
}

.cta-box::before,
.cta-box::after {
    content: "";
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2px solid var(--green);
    opacity: 0.85;
}

.cta-box::before {
    top: -2px;
    left: -2px;
    border-right: 0;
    border-bottom: 0;
    border-top-left-radius: var(--radius);
}

.cta-box::after {
    bottom: -2px;
    right: -2px;
    border-left: 0;
    border-top: 0;
    border-bottom-right-radius: var(--radius);
}

.cta-box h2 {
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    margin: 0.5rem 0 0.55rem;
}

.cta-box .cta-sub {
    color: var(--ink-2);
    max-width: 34em;
}

.cta-box .cta-sub strong {
    color: var(--amber);
    font-family: var(--font-mono);
    font-weight: 600;
}

.cta-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

/* ---------- 12. 页脚 ---------- */

.site-footer {
    border-top: 1px solid var(--line);
    background: var(--bg0);
    font-size: 0.92rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
    gap: 2.4rem;
    padding: clamp(2.6rem, 6vw, 4rem) 0 2.2rem;
}

.footer-col h3 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--ink-3s);
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.footer-col h3::before {
    content: "## ";
    color: var(--green-dim);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-mono);
    font-size: 1.02rem;
    font-weight: 700;
    margin-bottom: 0.9rem;
}

.footer-desc {
    color: var(--ink-2);
    font-size: 0.88rem;
    margin-bottom: 0.9rem;
}

.footer-quote {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-3s);
}

.footer-quote::before {
    content: "// ";
    color: var(--green-dim);
}

.footer-links li {
    margin-bottom: 0.45rem;
}

.footer-links a {
    color: var(--ink-2);
    font-size: 0.9rem;
}

.footer-links a::before {
    content: "./";
    font-family: var(--font-mono);
    color: var(--ink-3s);
    margin-right: 0.3em;
    transition: color 0.15s;
}

.footer-links a:hover {
    color: var(--green);
}

.footer-links a:hover::before {
    color: var(--green);
}

.footer-contact li {
    display: flex;
    gap: 0.6rem;
    align-items: baseline;
    margin-bottom: 0.55rem;
    color: var(--ink-2);
    font-size: 0.88rem;
}

.footer-contact .k {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--ink-3s);
    letter-spacing: 0.08em;
    flex: 0 0 3.2em;
}

.footer-flinks {
    padding: 1.1rem 0;
    border-top: 1px dashed rgba(126, 168, 255, 0.1);
    font-size: 0.84rem;
    color: var(--ink-3s);
}

.footer-flinks strong {
    font-family: var(--font-mono);
    font-weight: 500;
    margin-right: 0.6em;
}

.footer-flinks a {
    color: var(--ink-2);
    margin-right: 1.1em;
}

.footer-flinks a:hover {
    color: var(--green);
}

.footer-legal {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    padding: 1.1rem 0 1.4rem;
    border-top: 1px dashed rgba(126, 168, 255, 0.1);
    color: var(--ink-3s);
    font-size: 0.8rem;
}

.footer-legal a:hover {
    color: var(--green);
}

/* IDE 状态栏 */
.statusbar {
    background: #03060c;
    border-top: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--ink-3s);
    user-select: none;
}

.statusbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 30px;
    overflow: hidden;
    white-space: nowrap;
}

.statusbar .seg {
    display: inline-flex;
    align-items: center;
    gap: 1.2em;
}

.statusbar .live {
    color: var(--green);
}

.statusbar .live::before {
    content: "●";
    margin-right: 0.4em;
    animation: blink 2.2s steps(1) infinite;
}

/* 返回顶部 */
.back-top {
    position: fixed;
    right: 22px;
    bottom: 56px;
    z-index: 90;
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-s);
    background: var(--bg2);
    color: var(--ink-2);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s, transform 0.2s, visibility 0.2s, border-color 0.2s, color 0.2s;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-top:hover {
    border-color: var(--green);
    color: var(--green);
}

.back-top svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- 13. 内页 Hero ---------- */

.page-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(2.6rem, 6vw, 4rem) 0;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(720px 340px at 88% -30%, rgba(63, 224, 141, 0.07), transparent 62%),
        var(--bg0);
}

.page-hero::after {
    content: attr(data-hex);
    position: absolute;
    right: clamp(0.6rem, 4vw, 2.4rem);
    bottom: -0.42em;
    font-family: var(--font-mono);
    font-size: clamp(4rem, 12vw, 7.5rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: rgba(126, 168, 255, 0.05);
    pointer-events: none;
    user-select: none;
    line-height: 1;
}

.crumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25em;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-3s);
    margin-bottom: 0.9rem;
}

.crumbs::before {
    content: "~/";
    color: var(--green);
}

.crumbs a {
    color: var(--ink-2);
}

.crumbs a:hover {
    color: var(--green);
}

.page-hero h1 {
    font-size: clamp(1.7rem, 4vw, 2.5rem);
    letter-spacing: 0.01em;
}

.page-lead {
    max-width: 46em;
    margin-top: 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    color: var(--ink-2);
}

.page-lead::before {
    content: "// ";
    color: var(--green-dim);
}

/* ---------- 14. 列表布局 ---------- */

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: clamp(1.6rem, 4vw, 2.6rem);
    align-items: start;
}

.page-main {
    min-width: 0;
}

/* 行式文档列表（文章 / 搜索） */
.doclist {
    display: flex;
    flex-direction: column;
}

.docrow {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr) auto;
    gap: 1.3rem;
    align-items: baseline;
    padding: 1.15rem 1rem;
    border-bottom: 1px dashed rgba(126, 168, 255, 0.1);
    border-radius: var(--radius-s);
    transition: background-color 0.16s var(--ease);
}

.docrow:hover {
    background: rgba(148, 190, 255, 0.04);
}

.docrow time {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-3s);
    white-space: nowrap;
}

.docrow h2 {
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.5;
}

.docrow h2 a:hover {
    color: var(--green);
}

.docrow p {
    grid-column: 2;
    color: var(--ink-2);
    font-size: 0.88rem;
    margin-top: 0.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.docrow .go {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-3s);
    transition: color 0.15s, transform 0.18s var(--ease);
}

.docrow:hover .go {
    color: var(--green);
    transform: translateX(3px);
}

/* 媒体卡网格（视频 / 下载列表页 + 正文 media-list） */
.mediagrid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1rem;
}

.mediacard {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.mediacard:hover {
    transform: translateY(-4px);
    border-color: rgba(63, 224, 141, 0.45);
    box-shadow: 0 14px 44px rgba(0, 0, 0, 0.45);
}

.mediacard .cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background:
        repeating-linear-gradient(45deg, rgba(126, 168, 255, 0.05) 0 8px, transparent 8px 16px),
        var(--bg3);
}

.mediacard .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s var(--ease), opacity 0.3s;
}

.mediacard:hover .cover img {
    transform: scale(1.045);
}

.mediacard .cover .glyph {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    color: var(--green);
    background: linear-gradient(180deg, rgba(4, 8, 16, 0.15), rgba(4, 8, 16, 0.5));
    opacity: 0.92;
    transition: opacity 0.25s;
}

.mediacard .cover .glyph i {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 1.6px solid var(--green);
    background: rgba(5, 8, 15, 0.72);
    font-style: normal;
    font-size: 1rem;
    text-indent: 3px;
    box-shadow: 0 0 26px var(--green-glow);
}

.mediacard .body {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem 1.1rem 1.15rem;
    flex: 1;
}

.mediacard .body h2,
.mediacard .body h3 {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
}

.mediacard .body h2 a:hover,
.mediacard .body h3 a:hover {
    color: var(--green);
}

.mediacard .body p {
    color: var(--ink-2);
    font-size: 0.86rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mediacard .metas {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: auto;
}

/* 师资档案 */
.teacher-list {
    display: flex;
    flex-direction: column;
    gap: 1.3rem;
}

.teacher {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    overflow: hidden;
}

.teacher .photo {
    background: var(--bg3);
    min-height: 100%;
}

.teacher .photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.9);
}

.teacher .info {
    padding: 1.5rem 1.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.teacher .name-row {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.teacher h2 {
    font-size: 1.3rem;
}

.teacher h2 a:hover {
    color: var(--green);
}

.teacher .spec {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-3s);
}

.teacher .spec::before {
    content: "> ";
    color: var(--green);
}

.teacher .bio {
    color: var(--ink-2);
    font-size: 0.93rem;
}

.teacher .more {
    margin-top: auto;
    align-self: flex-start;
}

/* 荣誉内存表 */
.memtable-wrap {
    overflow-x: auto;
}

.memtable {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.memtable th {
    padding: 0.7rem 1.1rem;
    text-align: left;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: var(--ink-3s);
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

.memtable td {
    padding: 0.68rem 1.1rem;
    border-bottom: 1px dashed rgba(126, 168, 255, 0.08);
    color: var(--ink-2);
    vertical-align: top;
}

.memtable tr:hover td {
    background: rgba(148, 190, 255, 0.035);
}

.memtable .t a {
    color: var(--ink);
}

.memtable .t a:hover {
    color: var(--green);
}

.memtable time,
.memtable .who {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: nowrap;
}

.grade {
    display: inline-grid;
    place-items: center;
    min-width: 1.9em;
    padding: 0.05em 0.5em;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.grade-hot {
    color: var(--amber);
    background: rgba(255, 190, 92, 0.1);
    border: 1px solid rgba(255, 190, 92, 0.35);
}

.grade-good {
    color: var(--green);
    background: rgba(63, 224, 141, 0.08);
    border: 1px solid rgba(63, 224, 141, 0.3);
}

/* 反馈卡 */
.fb-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.1rem;
}

.fb-card {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    padding: 1.4rem 1.4rem 1.3rem;
    transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.fb-card:hover {
    transform: translateY(-3px);
    border-color: rgba(63, 224, 141, 0.4);
}

.fb-card h2 {
    font-size: 1.04rem;
    font-weight: 600;
}

.fb-card h2 a:hover {
    color: var(--green);
}

.fb-card p {
    color: var(--ink-2);
    font-size: 0.9rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.fb-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

/* 目录列表（hub 页） */
.dirlist {
    display: flex;
    flex-direction: column;
}

.dirlist-head {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-3s);
    padding: 0 1.1rem 0.7rem;
}

.dirrow {
    display: grid;
    grid-template-columns: auto minmax(8em, 0.7fr) minmax(0, 1.6fr) auto;
    gap: 1.4rem;
    align-items: center;
    padding: 1.05rem 1.1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    margin-bottom: 0.6rem;
    background: var(--bg2);
    transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s;
}

.dirrow:hover {
    transform: translateX(6px);
    border-color: rgba(63, 224, 141, 0.45);
    background: var(--bg3);
}

.dirrow .mode {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--ink-3s);
    white-space: nowrap;
}

.dirrow:hover .mode {
    color: var(--green);
}

.dirrow h2 {
    font-size: 1.06rem;
    font-weight: 600;
    white-space: nowrap;
}

.dirrow h2::after {
    content: "/";
    color: var(--green);
    font-family: var(--font-mono);
}

.dirrow p {
    color: var(--ink-2);
    font-size: 0.88rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dirrow .go {
    font-family: var(--font-mono);
    color: var(--ink-3s);
    transition: color 0.15s, transform 0.18s var(--ease);
}

.dirrow:hover .go {
    color: var(--green);
    transform: translateX(3px);
}

/* ---------- 15. 分页 ---------- */

.pager {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-top: 2.2rem;
    font-family: var(--font-mono);
    font-size: 0.84rem;
}

.pager li a,
.pager li span {
    display: inline-grid;
    place-items: center;
    min-width: 2.3em;
    padding: 0.42em 0.7em;
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    color: var(--ink-2);
    background: var(--bg2);
    transition: border-color 0.15s, color 0.15s;
}

.pager li a:hover {
    border-color: var(--green);
    color: var(--green);
}

.pager li.current span {
    border-color: var(--green);
    color: #04140b;
    background: var(--green);
    font-weight: 700;
}

.pager li.disabled span,
.pager li.info span {
    border-style: dashed;
    color: var(--ink-3s);
    background: transparent;
}

/* ---------- 16. 详情页 ---------- */

.doc-head {
    margin-bottom: 1.8rem;
}

.doc-head h1 {
    font-size: clamp(1.5rem, 3.4vw, 2.1rem);
    margin: 0.7rem 0 1rem;
    line-height: 1.32;
}

.doc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* 正文排版 */
.prose {
    font-size: 1.02rem;
    line-height: 1.95;
    color: #c3d2e6;
    overflow-wrap: break-word;
}

.prose > * + * {
    margin-top: 1.1em;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
    margin-top: 1.9em;
    line-height: 1.4;
    color: var(--ink);
}

.prose h1 {
    font-size: 1.5em;
}

.prose h2 {
    font-size: 1.3em;
    padding-left: 0.6em;
    border-left: 3px solid var(--green);
}

.prose h3 {
    font-size: 1.12em;
}

.prose h4 {
    font-size: 1em;
    color: var(--ink-2);
}

.prose a {
    color: var(--cyan);
    text-decoration: underline;
    text-decoration-color: rgba(98, 211, 255, 0.35);
    text-underline-offset: 3px;
}

.prose a:hover {
    text-decoration-color: var(--cyan);
}

.prose strong {
    color: var(--ink);
}

.prose img {
    margin: 0.4em auto;
    border-radius: var(--radius-s);
    border: 1px solid var(--line);
}

.prose figure {
    margin: 1.4em 0;
}

.prose figure img {
    margin: 0 auto;
}

.prose figcaption {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-3s);
    margin-top: 0.6em;
}

.prose ul,
.prose ol {
    padding-left: 1.5em;
}

.prose ul {
    list-style: none;
}

.prose ul > li {
    position: relative;
    margin: 0.45em 0;
}

.prose ul > li::before {
    content: "▸";
    position: absolute;
    left: -1.3em;
    color: var(--green);
    font-family: var(--font-mono);
    font-size: 0.85em;
    top: 0.18em;
}

.prose ol {
    list-style: decimal;
}

.prose ol > li {
    margin: 0.45em 0;
    padding-left: 0.3em;
}

.prose ol > li::marker {
    color: var(--green);
    font-family: var(--font-mono);
}

.prose blockquote {
    margin: 1.4em 0;
    padding: 0.9em 1.3em;
    border-left: 3px solid var(--green-dim);
    border-radius: 0 var(--radius-s) var(--radius-s) 0;
    background: rgba(63, 224, 141, 0.05);
    color: var(--ink-2);
}

.prose pre {
    padding: 1em 1.2em;
    background: var(--bg0);
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.88em;
    line-height: 1.7;
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--amber);
    background: rgba(255, 190, 92, 0.08);
    padding: 0.1em 0.4em;
    border-radius: 4px;
}

.prose pre code {
    color: inherit;
    background: none;
    padding: 0;
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    font-size: 0.92em;
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    overflow: hidden;
}

.prose table tr:first-child td,
.prose th {
    background: var(--bg3);
    color: var(--ink);
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.86em;
}

.prose td,
.prose th {
    padding: 0.6em 0.95em;
    border: 1px solid rgba(126, 168, 255, 0.1);
    text-align: left;
}

.prose tr:nth-child(even) td {
    background: rgba(148, 190, 255, 0.025);
}

.prose hr {
    border: 0;
    border-top: 1px dashed var(--line-2);
    margin: 2em 0;
}

.prose iframe {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    height: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-s);
    background: var(--bg0);
    margin: 1.4em 0;
}

/* 正文里的媒体列表（清洗器产物） */
.prose .media-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 0;
    margin: 1.6em 0;
    list-style: none;
}

.prose .media-list > li {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0 0 0.95rem;
    background: var(--bg2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.prose .media-list > li:hover {
    transform: translateY(-4px);
    border-color: rgba(63, 224, 141, 0.45);
}

.prose .media-list > li::before {
    content: none;
}

.prose .media-list a {
    display: flex;
    flex-direction: column;
    flex: 1;
    color: var(--ink);
    text-decoration: none;
    font-size: 0.92rem;
    line-height: 1.55;
}

.prose .media-list a:hover .media-title {
    color: var(--green);
}

.prose .media-list img {
    margin: 0 0 0.85rem;
    border: 0;
    border-radius: 0;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.prose .media-list .media-title {
    display: block;
    padding: 0 1rem;
    transition: color 0.16s var(--ease);
}

.prose .media-list .media-meta {
    display: block;
    padding: 0.3rem 1rem 0;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--ink-3s);
}

.prose .media-list > li::after {
    content: "▸ PLAY";
    margin: 0.75rem 1rem 0;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    color: var(--green);
}

/* 详情动作条 */
.doc-actions {
    margin-top: 1.8rem;
}

/* 上下篇 */
.prenext {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
    margin-top: 2.4rem;
}

.prenext > * {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 1rem 1.15rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg2);
    min-width: 0;
}

.prenext .dir {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    color: var(--ink-3s);
}

.prenext .t {
    font-size: 0.92rem;
    color: var(--ink-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.prenext a {
    transition: border-color 0.18s, transform 0.18s var(--ease);
}

.prenext a:hover {
    border-color: rgba(63, 224, 141, 0.45);
    transform: translateY(-2px);
}

.prenext a:hover .t {
    color: var(--ink);
}

.prenext .next {
    text-align: right;
}

.prenext .none {
    opacity: 0.45;
    border-style: dashed;
}

/* 视频观看窗格 */
.watch {
    overflow: hidden;
    margin-bottom: 1.8rem;
}

.watch-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.1rem;
    padding: clamp(2.2rem, 6vw, 3.6rem) 1.5rem;
    background:
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.012) 0 1px, transparent 1px 3px),
        radial-gradient(560px 260px at 50% 0%, rgba(63, 224, 141, 0.07), transparent 70%),
        var(--bg0);
    text-align: center;
}

.watch-play {
    display: inline-flex;
    align-items: center;
    gap: 0.7em;
}

.watch-url {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-3s);
    word-break: break-all;
    max-width: 620px;
}

.watch-url::before {
    content: "src = ";
    color: var(--green-dim);
}

.player-frame {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--radius-s);
    border: 1px solid var(--line);
}

/* 下载包窗格 */
.pkg {
    overflow: hidden;
    margin-bottom: 1.8rem;
}

.pkg-body {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    flex-wrap: wrap;
    padding: 1.6rem 1.5rem;
}

.pkg-icon {
    display: grid;
    place-items: center;
    width: 62px;
    height: 62px;
    border-radius: var(--radius);
    border: 1px solid rgba(63, 224, 141, 0.4);
    background: rgba(63, 224, 141, 0.06);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--green);
    text-transform: uppercase;
}

.pkg-info {
    flex: 1;
    min-width: 220px;
}

.pkg-info .fname {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--ink);
    word-break: break-all;
}

.pkg-info .fmeta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 0.55rem;
}

/* ---------- 17. 侧栏 ---------- */

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    position: sticky;
    top: calc(var(--header-h) + 20px);
}

.side-pane {
    padding-bottom: 0.6rem;
}

.side-pane .pane-bar {
    margin-bottom: 0.4rem;
}

.side-list {
    display: flex;
    flex-direction: column;
}

.side-list li {
    padding: 0.55rem 1.1rem;
}

.side-list li a {
    display: block;
    font-size: 0.9rem;
    color: var(--ink-2);
    line-height: 1.55;
}

.side-list li a::before {
    content: "▸ ";
    font-family: var(--font-mono);
    color: var(--ink-3s);
    font-size: 0.85em;
}

.side-list li a:hover {
    color: var(--green);
}

.side-list li a:hover::before {
    color: var(--green);
}

.side-list li time {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--ink-3s);
    margin-top: 0.15rem;
    padding-left: 1.15em;
}

.side-nav li a {
    display: flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.5rem 1.1rem;
    font-size: 0.92rem;
    color: var(--ink-2);
}

.side-nav li a::before {
    content: "./";
    font-family: var(--font-mono);
    font-size: 0.82em;
    color: var(--ink-3s);
}

.side-nav li a:hover {
    color: var(--green);
}

.side-nav li a:hover::before {
    color: var(--green);
}

.side-nav li.active a {
    color: var(--green);
    background: rgba(63, 224, 141, 0.06);
}

.side-nav li.active a::before {
    color: var(--green);
}

.side-contact {
    padding: 1.2rem 1.2rem 1.3rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.side-contact .row {
    display: flex;
    align-items: baseline;
    gap: 0.7em;
    font-size: 0.9rem;
    color: var(--ink-2);
}

.side-contact .row .k {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    color: var(--ink-3s);
    flex: 0 0 3.4em;
}

.side-contact .row strong {
    color: var(--amber);
    font-family: var(--font-mono);
    font-weight: 600;
}

.side-contact .btn {
    margin-top: 0.6rem;
    align-self: stretch;
}

/* ---------- 18. 表单 ---------- */

.form-pane {
    padding: 1.5rem 1.5rem 1.6rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.1rem;
    margin-bottom: 1.3rem;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field-full {
    grid-column: 1 / -1;
}

.field label {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.1em;
    color: var(--ink-2);
}

.field label em {
    color: var(--red);
    font-style: normal;
}

.field input,
.field textarea,
.field select {
    padding: 0.66em 0.95em;
    background: var(--bg0);
    border: 1px solid var(--line-2);
    border-radius: var(--radius-s);
    color: var(--ink);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.16s, box-shadow 0.16s;
}

.field textarea {
    min-height: 120px;
    resize: vertical;
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.field input[type="file"] {
    padding: 0.5em;
    font-family: var(--font-mono);
    font-size: 0.84rem;
}

/* ---------- 19. 联系页 ---------- */

.contact-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: clamp(1.6rem, 4vw, 2.6rem);
    align-items: start;
}

.env-pane {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.env-rows {
    padding: 0.7rem 0.4rem;
}

.env-row {
    display: grid;
    grid-template-columns: 7.5em minmax(0, 1fr);
    gap: 1rem;
    padding: 0.62rem 1rem;
    border-bottom: 1px dashed rgba(126, 168, 255, 0.08);
}

.env-row:last-child {
    border-bottom: 0;
}

.env-row .k {
    color: var(--ink-3s);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    padding-top: 0.15em;
}

.env-row .v {
    color: var(--ink);
    word-break: break-all;
    font-size: 0.88rem;
    line-height: 1.7;
}

.env-row .v a:hover {
    color: var(--green);
}

.env-row .v .sub {
    color: var(--ink-3s);
}

/* ---------- 20. 课程阶段页 / 通用页尾导航 ---------- */

.silbing-nav,
.sib-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
    margin-top: 2.4rem;
}

/* ---------- 21. 搜索页 ---------- */

.search-hero {
    max-width: 640px;
    margin: 0 auto 2.4rem;
}

.search-hero .search-form {
    padding: 0;
}

.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--ink-2);
}

.empty-state .glyph {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.15rem;
    color: var(--ink-3s);
    margin-bottom: 0.8rem;
}

/* ---------- 21b. 科锐荣誉页 ---------- */

/* 成长经历：git log 风时间线，编号由 JS 倒序填充 */
.ms-line {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

.ms-line::before {
    content: "";
    position: absolute;
    left: 21px;
    top: 10px;
    bottom: 10px;
    border-left: 1px dashed var(--line-2);
}

.ms {
    position: relative;
    display: flex;
    gap: 1rem;
    padding: 0.55rem 0;
}

.ms-no {
    flex-shrink: 0;
    width: 42px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    color: var(--green);
    background: var(--bg2);
    border: 1px solid var(--line-2);
    border-radius: var(--radius-s);
    position: relative;
    z-index: 1;
    margin-top: 2px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.ms:hover .ms-no {
    border-color: var(--green-dim);
    box-shadow: 0 0 12px var(--green-glow);
}

.ms-body time {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--amber);
    letter-spacing: 0.05em;
}

.ms-body p {
    margin: 0.15rem 0 0;
    color: var(--ink);
    line-height: 1.75;
}

/* 我们的荣誉：牌匾墙 */
.plaque-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

.plaque {
    margin: 0;
    padding: 0.7rem 0.7rem 0.9rem;
    text-align: center;
}

.plaque img {
    display: block;
    width: 100%;
    border-radius: var(--radius-s);
    border: 1px solid var(--line);
}

.plaque figcaption {
    margin-top: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--ink-2);
    letter-spacing: 0.03em;
}

.honor-epilogue {
    max-width: 880px;
    margin: 2.4rem auto 0;
    text-align: center;
    color: var(--ink-2);
}

/* 合作伙伴 logo 墙：灰度待机，悬停点亮 */
.partner-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.8rem;
}

.partner-wall img {
    display: block;
    width: 100%;
    background: #f4f7fb;
    border-radius: var(--radius-s);
    border: 1px solid var(--line);
    padding: 0.55rem 0.9rem;
    box-sizing: border-box;
    filter: grayscale(1) contrast(0.92) opacity(0.85);
    transition: filter 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.partner-wall img:hover {
    filter: none;
    transform: translateY(-2px);
    border-color: var(--line-2);
}

/* ---------- 22. 动画 ---------- */

.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
    transition-delay: var(--reveal-delay, 0ms);
}

.reveal.in {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .proc-list {
        animation: none;
    }
}

/* ---------- 23. 响应式 ---------- */

.hide-s {
    display: revert;
}

@media (max-width: 1100px) {

    /* backdrop-filter 会把 fixed 后代圈进 header，导致抽屉打不开；小屏改不透明底 */
    .site-header {
        background: rgba(5, 8, 15, 0.97);
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }

    .nav-toggle {
        display: inline-grid;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 130;
        width: min(320px, 86vw);
        margin: 0;
        padding: 1.2rem 1rem 2rem;
        background: var(--bg1);
        border-left: 1px solid var(--line);
        overflow-y: auto;
        transform: translateX(100%);
        visibility: hidden;
        transition: transform 0.26s var(--ease), visibility 0.26s;
    }

    body.nav-open .main-nav {
        transform: none;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0.1rem;
    }

    .nav-item {
        border-bottom: 1px dashed rgba(126, 168, 255, 0.08);
    }

    .nav-item > a,
    .nav-item > .nav-label {
        display: flex;
        width: 100%;
        padding: 0.8em 0.6em;
        font-size: 1rem;
    }

    .nav-item.has-sub > .nav-label::after {
        margin-left: auto;
    }

    .nav-item.has-sub.sub-open > .nav-label::after {
        transform: rotate(-135deg) translateY(-2px);
    }

    .sub-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: hidden;
        display: none;
        min-width: 0;
        border: 0;
        box-shadow: none;
        background: transparent;
        padding: 0 0 0.6rem 0.9rem;
    }

    /* 桌面弹层的 hover/focus-within 规则特异性更高，会把抽屉内子菜单平移出可视区，这里同特异性压回 */
    .nav-item.has-sub:hover .sub-menu,
    .nav-item.has-sub:focus-within .sub-menu {
        transform: none;
        visibility: hidden;
    }

    .nav-item.has-sub.sub-open .sub-menu {
        display: block;
        visibility: visible;
    }

    .sub-menu li a {
        white-space: normal;
    }

    .sub-toggle {
        display: none;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
    }

    .hl-stack {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .stage:nth-child(odd)::after {
        content: "─▶";
    }

    .stage:nth-child(even)::after {
        content: none;
    }

    .page-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .mediagrid,
    .prose .media-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .partner-wall {
        grid-template-columns: repeat(5, 1fr);
    }
}

@media (max-width: 860px) {
    .hero-inner {
        grid-template-columns: 1fr;
        padding-top: 2.8rem;
        padding-bottom: 2.8rem;
    }

    .hero-visual {
        order: -1;
    }

    .terminal::before {
        display: none;
    }

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

    .reg:nth-child(3) {
        border-left: 0;
    }

    .reg {
        border-top: 1px solid var(--line);
    }

    .reg:nth-child(-n+2) {
        border-top: 0;
    }

    .proc-head,
    .proc-row {
        grid-template-columns: 1fr 1.4fr 1fr;
    }

    .proc-head span:last-child,
    .proc-row .pay {
        display: none;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hl-stack {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .enroll-steps {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .enroll-steps li::after {
        content: "↓";
        right: auto;
        left: 1.35rem;
        top: auto;
        bottom: -1.15rem;
        transform: none;
    }

    .enroll-steps li:last-child::after {
        content: none;
    }

    .bc-frames {
        aspect-ratio: 21 / 9;
    }

    .teacher {
        grid-template-columns: 1fr;
    }

    .teacher .photo img {
        max-height: 340px;
    }

    .fb-grid {
        grid-template-columns: 1fr;
    }

    .dirrow {
        grid-template-columns: auto minmax(0, 1fr) auto;
    }

    .dirrow p {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.8rem;
    }

    .plaque-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.9rem;
    }

    .partner-wall {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 640px) {
    body {
        font-size: 15px;
    }

    .hide-s {
        display: none;
    }

    .syslog-list {
        gap: 0.9rem;
    }

    .quote-grid,
    .feature-grid,
    .pipeline,
    .mediagrid,
    .prose .media-list {
        grid-template-columns: 1fr;
    }

    .stage::after {
        content: none !important;
    }

    .docrow {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .docrow time {
        grid-column: 1 / -1;
        order: -1;
    }

    .docrow p {
        grid-column: 1;
    }

    .prenext {
        grid-template-columns: 1fr;
    }

    .prenext .next {
        text-align: left;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .memtable .who {
        display: none;
    }

    .memtable th:nth-child(3) {
        display: none;
    }

    .back-top {
        right: 14px;
        bottom: 44px;
    }

    .ms {
        gap: 0.7rem;
    }

    .ms-no {
        width: 36px;
        height: 24px;
        font-size: 0.68rem;
    }

    .ms-line::before {
        left: 18px;
    }

    .plaque-grid {
        grid-template-columns: 1fr;
    }

    .partner-wall {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.6rem;
    }
}