/* 2FA 登录教程页 */
.guide-page { max-width: 820px; margin: 0 auto; padding: 36px 0 24px; }
.g-head { display: grid; gap: 12px; margin-bottom: 28px; }
.g-head h1 { margin: 0; font-size: clamp(28px, 4vw, 44px); line-height: 1.12; font-weight: 900; letter-spacing: -.02em; text-wrap: balance; }
.g-head .mk-lede { margin: 0; }
.g-toc { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; counter-reset: toc; }
.g-toc li { counter-increment: toc; }
.g-toc a { display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 14px 0 6px; border-radius: var(--mk-r-full); background: var(--mk-surface-2); border: 1px solid var(--mk-border); color: var(--mk-text-2); text-decoration: none; font-size: 13.5px; font-weight: 600; }
.g-toc a::before { content: counter(toc); display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--mk-accent-soft); color: var(--mk-accent-ink); font-size: 12px; font-weight: 800; }
.g-toc a:hover { border-color: var(--mk-border-strong); }

.g-step { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 18px; padding: 28px 0; border-top: 1px solid var(--mk-border); scroll-margin-top: 84px; }
@media (max-width: 600px) { .g-step { grid-template-columns: 1fr; gap: 10px; } }
.g-num { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-weight: 900; font-size: 18px; color: #fff; background: linear-gradient(135deg, var(--mk-accent), var(--mk-accent-2)); box-shadow: var(--mk-shadow-glow); }
.g-body { min-width: 0; display: grid; gap: 14px; }
.g-body h2 { margin: 6px 0 0; font-size: 22px; font-weight: 800; letter-spacing: -.01em; }
.g-body > p, .g-notes li, .g-way p { margin: 0; color: var(--mk-text-2); font-size: 15.5px; line-height: 1.8; }
.g-body code, .g-notes code, .g-way code { font-family: var(--mk-mono); font-size: .9em; background: var(--mk-surface-2); padding: 1px 6px; border-radius: 6px; }
.g-body a, .g-notes a { color: var(--mk-accent-ink); }
.g-fig { margin: 4px 0 0; display: grid; gap: 10px; }
.g-fig figcaption { font-size: 13px; color: var(--mk-muted); line-height: 1.6; }

/* 第 1 步：一行账号拆开 */
.fig-line { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 6px 4px; padding: 18px; border-radius: var(--mk-r-lg); border: 1px dashed var(--mk-border-strong); background: var(--mk-surface); font-family: var(--mk-mono); font-size: 13.5px; }
.fig-line .dash { color: var(--mk-subtle); padding-top: 6px; }
.fig-line .seg { display: grid; gap: 6px; }
.fig-line .seg b { font-weight: 600; padding: 5px 8px; border-radius: 8px; word-break: break-all; }
.fig-line .seg i { font-style: normal; font-family: var(--mk-font); font-size: 12px; font-weight: 700; padding-left: 4px; }
.s-email b { background: color-mix(in srgb, #3B82F6 14%, transparent); box-shadow: inset 0 -2px 0 #3B82F6; } .s-email i { color: #3B82F6; }
.s-pass b { background: color-mix(in srgb, #A855F7 14%, transparent); box-shadow: inset 0 -2px 0 #A855F7; } .s-pass i { color: #A855F7; }
.s-rec b { background: color-mix(in srgb, #14B8A6 14%, transparent); box-shadow: inset 0 -2px 0 #14B8A6; } .s-rec i { color: #0D9488; }
.s-2fa b { background: var(--mk-accent-soft); box-shadow: inset 0 -2px 0 var(--mk-accent); } .s-2fa i { color: var(--mk-accent-ink); }

/* 浏览器和登录页示意 */
.mock { border-radius: var(--mk-r-lg); border: 1px solid var(--mk-border); background: var(--mk-surface-2); overflow: hidden; }
.mock-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--mk-border); background: var(--mk-surface-3); }
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--mk-border-strong); }
.mock-bar em { margin-left: 10px; font-style: normal; font-family: var(--mk-mono); font-size: 12px; color: var(--mk-muted); padding: 3px 10px; border-radius: 6px; background: var(--mk-surface); }
.mock-pair { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; padding: 18px; }
@media (max-width: 640px) { .mock-pair { grid-template-columns: 1fr; } .mock-arrow { transform: rotate(90deg); justify-self: center; } }
.mock-arrow { font-size: 22px; color: var(--mk-accent-ink); font-weight: 800; }
.mock-card { background: var(--mk-surface); border: 1px solid var(--mk-border); border-radius: 18px; padding: 20px; display: grid; gap: 10px; }
.mock-wide { margin: 18px; max-width: 460px; }
@media (min-width: 700px) { .mock-wide { margin: 22px auto; } }
.mock-title { font-size: 19px; font-weight: 600; }
.mock-sub { font-size: 13px; color: var(--mk-text-2); margin-top: -4px; }
.mock-input { position: relative; margin-top: 8px; padding: 13px 12px 11px; border-radius: 6px; border: 1px solid var(--mk-border-strong); font-size: 14.5px; font-family: var(--mk-mono); }
.mock-input label { position: absolute; top: -9px; left: 9px; padding: 0 4px; background: var(--mk-surface); font-family: var(--mk-font); font-size: 11.5px; color: var(--mk-muted); }
.mock-input.is-focus { border: 2px solid #4F6BED; padding: 12px 11px 10px; letter-spacing: .14em; font-weight: 700; }
.mock-input.is-focus label { color: #4F6BED; }
.caret { display: inline-block; width: 2px; height: 1.05em; margin-left: 2px; vertical-align: -2px; background: currentColor; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.mock-check { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.mock-check .box { width: 18px; height: 18px; border-radius: 4px; background: #4F6BED; color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 800; }
.mock-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.mock-link { color: #4F6BED; font-size: 13px; font-weight: 600; }
.mock-btn { padding: 8px 18px; border-radius: 999px; background: #3B4CCA; color: #fff; font-size: 13px; font-weight: 600; }
.mock-btn.is-hot { box-shadow: 0 0 0 4px color-mix(in srgb, #3B4CCA 25%, transparent); }

/* 第 3 步：两种拿验证码的方式 */
.g-ways { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 640px) { .g-ways { grid-template-columns: 1fr; } }
.g-way { padding: 18px; display: grid; gap: 10px; align-content: start; }
.g-way .mk-chip { justify-self: start; }
.g-way h3 { margin: 0; font-size: 16px; font-weight: 800; }
.g-way p { font-size: 14px !important; }
.mock-otp { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--mk-r-md); background: var(--mk-surface-2); }
.mock-otp .lbl { font-size: 13px; color: var(--mk-muted); }
.mock-otp code { font-family: var(--mk-mono); font-size: 22px; font-weight: 800; letter-spacing: .1em; color: var(--mk-accent-ink); background: none; padding: 0; }
.mock-otp i { font-style: normal; font-size: 12px; color: var(--mk-muted); margin-left: auto; }
.mock-site { border-radius: var(--mk-r-md); border: 1px solid var(--mk-border); overflow: hidden; }
.mock-site-bar { padding: 7px 12px; font-family: var(--mk-mono); font-size: 12px; color: var(--mk-muted); background: var(--mk-surface-3); }
.mock-site-body { display: grid; justify-items: center; gap: 6px; padding: 16px; background: var(--mk-surface); }
.mock-site-body span { font-size: 13px; font-weight: 700; }
.mock-site-body b { font-family: var(--mk-mono); font-size: 24px; letter-spacing: .12em; padding: 6px 14px; border: 1.5px solid var(--mk-text); border-radius: 8px; }
.mock-site-body i { font-style: normal; font-size: 12px; color: var(--mk-muted); }

/* 在线算验证码 */
.tool { padding: 20px; display: grid; gap: 10px; }
.tool h3 { margin: 0; font-size: 16px; font-weight: 800; }
.tool p { margin: 0; color: var(--mk-muted); font-size: 14px; line-height: 1.6; }
.tool-out { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 12px 16px; border-radius: var(--mk-r-md); background: var(--mk-surface-2); }
.tool-out code { font-family: var(--mk-mono); font-size: 30px; font-weight: 900; letter-spacing: .14em; color: var(--mk-accent-ink); }
.tool-out span { font-size: 13px; color: var(--mk-muted); font-variant-numeric: tabular-nums; }
.tool-out .mk-btn { margin-left: auto; }
.ring { width: 28px; height: 28px; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 4; }
.ring-bg { stroke: var(--mk-border-strong); }
.ring-fg { stroke: var(--mk-accent); stroke-dasharray: 97.4; transition: stroke-dashoffset .9s linear; }

.g-notes { padding: 28px 0 0; border-top: 1px solid var(--mk-border); display: grid; gap: 14px; }
.g-notes h2 { margin: 8px 0 0; font-size: 22px; font-weight: 800; }
.g-notes ul { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.g-back { display: flex; flex-wrap: wrap; gap: 10px; margin: 32px 0 0; }


.mail-mock { border-radius: var(--mk-r-lg); border: 1px solid var(--mk-border); background: var(--mk-surface); overflow: hidden; }
.mm-row { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 10px; padding: 10px 16px; border-bottom: 1px solid var(--mk-border); font-size: 14px; }
.mm-row span { color: var(--mk-muted); }
.mm-row b { font-weight: 600; overflow-wrap: anywhere; }
.mm-body { padding: 16px; font-size: 14px; line-height: 1.8; color: var(--mk-text-2); min-height: 72px; }