nuxt-app/app/components/AuthShell.vue

<script setup lang="ts">
defineProps<{
  /** 表单标题，例如「欢迎回来」/「创建账户」 */
  title: string
  /** 表单标题下方的一行说明 */
  description?: string
}>()

const fontReady = ref(false)

onMounted(async () => {
  try {
    await useGoogleFont([{ family: 'Liu Jian Mao Cao', weight: 400 }])
  } finally {
    fontReady.value = true
  }
})
</script>

<template>
  <div class="auth-page">
    <div class="auth-frame">
      <!-- 左侧：品牌宣言 -->
      <aside class="auth-brand">
        <div class="auth-brand-top">
          <NuxtLink to="/" class="auth-signature" :class="{ ready: fontReady }">Dash</NuxtLink>
          <h1 class="auth-brand-title">
            灵感、对话、作品，<br />
            <span class="accent">一处安放。</span>
          </h1>
          <p class="auth-brand-sub">登录后，继续策展灵感、收藏碎片、发布作品。</p>
        </div>

        <div class="auth-brand-card" aria-hidden="true">
          <span class="auth-card-diamond">◆</span>
          <p class="auth-card-quote">把喜欢的碎片，<br />收进同一个地方。</p>
          <div class="auth-card-meta">
            <span class="auth-card-tag">收藏</span>
            <span class="auth-card-tag">灵感</span>
            <span class="auth-card-tag">创作</span>
          </div>
        </div>
      </aside>

      <!-- 右侧：表单 -->
      <main class="auth-form-panel">
        <header class="auth-form-head">
          <h2 class="auth-form-title">{{ title }}</h2>
          <p v-if="description" class="auth-form-desc">{{ description }}</p>
        </header>
        <slot />
      </main>
    </div>
  </div>
</template>

<style>
/* ───────────────────────────────────────────
   Auth 共享样式（全局，供 login/register 的插槽内容复用）
   ─────────────────────────────────────────── */

.auth-page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 64px 32px;
  background: var(--color-canvas);
}

.auth-frame {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 96px;
  width: 100%;
  max-width: 1080px;
  align-items: center;
}

/* ── 品牌区 ── */

.auth-brand {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 72px;
  min-height: 460px;
}

.auth-signature {
  display: inline-block;
  font-family: 'Liu Jian Mao Cao', cursive;
  font-size: 46px;
  line-height: 1;
  color: var(--color-primary);
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.auth-signature.ready {
  opacity: 1;
}

.auth-brand-title {
  margin: 22px 0 0;
  font-family: var(--font-display);
  font-size: clamp(44px, 5.2vw, 64px);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -1.5px;
  color: var(--color-ink);
}

.auth-brand-title .accent {
  color: var(--color-primary);
}

.auth-brand-sub {
  margin: 22px 0 0;
  max-width: 40ch;
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-body);
}

.auth-brand-card {
  background: var(--color-surface-dark);
  border-radius: 16px;
  padding: 32px;
  color: var(--color-on-dark);
}

.auth-card-diamond {
  display: block;
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.auth-card-quote {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.2px;
  color: var(--color-on-dark);
}

.auth-card-meta {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-surface-dark-elevated);
}

.auth-card-tag {
  padding: 4px 12px;
  border: 1px solid var(--color-surface-dark-elevated);
  border-radius: 9999px;
  font-size: 12px;
  color: var(--color-on-dark-soft);
}

/* ── 表单区 ── */

.auth-form-panel {
  display: flex;
  flex-direction: column;
}

.auth-form-head {
  margin-bottom: 40px;
}

.auth-form-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.6px;
  color: var(--color-ink);
}

.auth-form-desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
}

/* ── 表单控件 ── */

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.auth-field-label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: var(--color-ink);
}

.auth-input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  box-sizing: border-box;
  border: 1px solid var(--color-hairline);
  border-radius: 12px;
  background: var(--color-canvas);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-ink);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.auth-input::placeholder {
  color: var(--color-muted-soft);
}

.auth-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(204, 120, 92, 0.12);
}

.auth-captcha-row {
  display: flex;
  gap: 12px;
}

.auth-captcha-row .auth-input {
  flex: 1;
  min-width: 0;
}

.auth-captcha-box {
  width: 132px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-hairline);
  border-radius: 12px;
  background: var(--color-surface-soft);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.2s ease, opacity 0.2s ease;
}

.auth-captcha-box:hover {
  border-color: var(--color-primary);
}

.auth-captcha-box.loading {
  opacity: 0.5;
  pointer-events: none;
}

.auth-captcha-box svg {
  display: block;
  height: 40px;
}

/* ── 提交按钮 ── */

.auth-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 50px;
  margin-top: 8px;
  border: none;
  border-radius: 8px;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, opacity 0.2s ease;
}

.auth-submit:hover {
  background: var(--color-primary-active);
}

.auth-submit:active {
  transform: scale(0.99);
}

.auth-submit.loading {
  opacity: 0.65;
  cursor: not-allowed;
}

.auth-submit .arrow {
  font-size: 18px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.auth-submit:hover .arrow {
  transform: translateX(4px);
}

/* ── 分隔线 ── */

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 32px 0 24px;
}

.auth-divider-line {
  flex: 1;
  height: 1px;
  background: var(--color-hairline);
}

.auth-divider-text {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-muted-soft);
}

/* ── 第三方登录 ── */

.auth-social {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 48px;
  border: 1px solid var(--color-hairline);
  border-radius: 8px;
  background: var(--color-canvas);
  color: var(--color-body);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.auth-social-btn:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
  background: var(--color-surface-soft);
}

.auth-social-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ── 页脚 ── */

.auth-footer {
  margin: 28px 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--color-muted);
}

.auth-footer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ── 响应式 ── */

@media (max-width: 900px) {
  .auth-page {
    padding: 48px 24px;
  }

  .auth-frame {
    grid-template-columns: 1fr;
    gap: 48px;
    max-width: 440px;
  }

  .auth-brand {
    min-height: 0;
    gap: 28px;
  }

  .auth-brand-title {
    font-size: 40px;
    letter-spacing: -0.8px;
  }

  .auth-brand-sub {
    font-size: 15px;
  }

  .auth-brand-card {
    display: none;
  }

  .auth-form-title {
    font-size: 34px;
  }
}
</style>