<script setup lang="ts">
import { computed } from "vue";
import { useI18n } from "vue-i18n";
import { storeToRefs } from "pinia";
import { useAuthStore } from "@/stores/auth";
import { AUTH_ENABLED } from "@/utils/featureFlags";
import aboutMountain from "@/assets/home/about-mountain.png";
// import visionBlackhole from "@/assets/home/vision-blackhole.png";
import iconAsset from "@/assets/home/icon-asset.png";
import iconSpeed from "@/assets/home/icon-speed.png";
import iconGlobal from "@/assets/home/icon-global.png";
import iconFee from "@/assets/home/icon-fee.png";
import iconEco from "@/assets/home/icon-eco.png";
import iconMission from "@/assets/home/icon-mission.png";
import iconPurpose from "@/assets/home/icon-purpose.png";
import cardGlow1 from "@/assets/home/card-glow-1.png";
import cardGlow2 from "@/assets/home/card-glow-2.png";
import cardGlow3 from "@/assets/home/card-glow-3.png";
import cardGlow4 from "@/assets/home/card-glow-4.png";
import authVisual from "@/assets/auth/auth-visual.png";

const { t } = useI18n();

const advantages = computed(() => [
  {
    icon: iconAsset,
    glow: cardGlow1,
    titleKey: "home.assetSafetyTitle",
    descKey: "home.assetSafetyDesc",
  },
  {
    icon: iconSpeed,
    glow: cardGlow2,
    titleKey: "home.highPerfTitle",
    descKey: "home.highPerfDesc",
  },
  {
    icon: iconGlobal,
    glow: cardGlow3,
    titleKey: "home.globalComplianceTitle",
    descKey: "home.globalComplianceDesc",
  },
  {
    icon: iconFee,
    glow: cardGlow4,
    titleKey: "home.transparentFeeTitle",
    descKey: "home.transparentFeeDesc",
  },
]);

const visionItems = computed(() => [
  { icon: iconEco, titleKey: "home.ecoTitle", descKey: "home.ecoDesc" },
  {
    icon: iconMission,
    titleKey: "home.missionTitle",
    descKey: "home.missionDesc",
  },
  {
    icon: iconPurpose,
    titleKey: "home.purposeTitle",
    descKey: "home.purposeDesc",
  },
]);

const { isLoggedIn } = storeToRefs(useAuthStore());
</script>

<template>
  <main class="page-main home">
    <!-- Hero -->
    <section class="hero">
      <div class="page-container hero-inner">
        <div class="hero-text">
          <h1 class="hero-title">{{ t("home.heroTitle") }}</h1>
          <p class="hero-desc">{{ t("home.heroDesc") }}</p>
          <div class="hero-actions">
            <RouterLink
              v-if="AUTH_ENABLED && !isLoggedIn"
              to="/register"
              class="btn btn-primary"
              >{{ t("home.register") }}</RouterLink
            >
            <RouterLink
              to="/market"
              class="btn"
              :class="
                AUTH_ENABLED && !isLoggedIn ? 'btn-outline' : 'btn-primary'
              "
              >{{ t("home.viewMarket") }}</RouterLink
            >
            <RouterLink
              v-if="!AUTH_ENABLED"
              to="/download"
              class="btn btn-outline"
              >{{ t("home.downloadApp") }}</RouterLink
            >
          </div>
        </div>
        <div class="hero-visual">
          <img
            :src="authVisual"
            :alt="t('home.heroImageAlt')"
            class="hero-visual-img"
            loading="eager"
            decoding="async"
          />
        </div>
      </div>
    </section>

    <!-- 平台核心优势 -->
    <section class="section advantages-section">
      <div class="page-container">
        <h2 class="section-title">{{ t("home.coreAdvantages") }}</h2>
        <div class="advantages-grid">
          <div
            v-for="item in advantages"
            :key="item.titleKey"
            class="advantage-card"
            :style="{ backgroundImage: `url(${item.glow})` }"
          >
            <img
              :src="item.icon"
              :alt="t(item.titleKey)"
              class="advantage-icon"
            />
            <h3 class="advantage-title">{{ t(item.titleKey) }}</h3>
            <p class="advantage-desc">{{ t(item.descKey) }}</p>
          </div>
          <div class="advantages-cross" aria-hidden="true" />
        </div>
      </div>
    </section>

    <!-- 关于我们 -->
    <section class="about-section">
      <div class="page-container about-inner">
        <div class="about-visual">
          <img
            :src="aboutMountain"
            :alt="t('home.aboutImageAlt')"
            class="about-image"
          />
        </div>
        <div class="about-content">
          <h2 class="about-title">{{ t("home.aboutUs") }}</h2>
          <p class="about-desc">{{ t("home.aboutDesc") }}</p>
          <p class="about-meta">{{ t("home.foundedYear") }}</p>
          <p class="about-meta">{{ t("home.headquarters") }}</p>
        </div>
      </div>
    </section>

    <!-- 我们的愿景 -->
    <section class="vision-section">
      <div class="page-container">
        <h2 class="section-title">{{ t("home.ourVision") }}</h2>
        <p class="vision-subtitle">{{ t("home.visionSubtitle") }}</p>
        <!-- <div
          class="vision-deco"
          :style="{ backgroundImage: `url(${visionBlackhole})` }"
        /> -->
        <div class="vision-grid">
          <div
            v-for="item in visionItems"
            :key="item.titleKey"
            class="vision-card"
          >
            <img :src="item.icon" :alt="t(item.titleKey)" class="vision-icon" />
            <h3 class="vision-title">{{ t(item.titleKey) }}</h3>
            <p class="vision-desc">{{ t(item.descKey) }}</p>
          </div>
        </div>
      </div>
    </section>
  </main>
</template>

<style scoped>
.home {
  background: #0a0a0a;
  color: #fff;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(
      ellipse 65% 45% at 50% 28%,
      rgba(240, 185, 11, 0.12) 0%,
      transparent 60%
    ),
    #0a0a0a;
}

.hero-inner {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: var(--space-10);
  align-items: center;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual-img {
  width: 100%;
  max-width: 560px;
  height: auto;
  display: block;
  object-fit: contain;
  user-select: none;
  pointer-events: none;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.3;
  color: #fff;
  margin-bottom: var(--space-6);
  letter-spacing: 0.5px;
  white-space: pre-line;
}

.hero-desc {
  font-size: 15px;
  color: #999;
  line-height: 1.85;
  max-width: 480px;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  height: 44px;
  padding: 0 var(--space-6);
  font-size: 15px;
  font-weight: 600;
  border-radius: 22px;
  text-decoration: none;
  transition: all 0.2s ease;
}
.btn-primary {
  background: var(--color-primary);
  color: #1a1a1a;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ==========================================================================
   平台核心优势
   ========================================================================== */
.advantages-section {
  background: #0a0a0a;
  padding: var(--space-20) 0;
  position: relative;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  text-align: center;
  margin-bottom: var(--space-12);
}

.advantages-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  max-width: 920px;
  margin: 0 auto;
}

.advantage-card {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background-color: #111;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 14px;
  overflow: hidden;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease;
}
.advantage-card:hover {
  transform: translateY(-2px);
  border-color: rgba(240, 185, 11, 0.3);
}

.advantage-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  margin-bottom: var(--space-4);
}

.advantage-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.advantage-desc {
  font-size: 13px;
  color: #999;
  line-height: 1.75;
}

.advantages-cross {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 50% 50%,
      rgba(240, 185, 11, 0.35) 0%,
      transparent 12%
    ),
    linear-gradient(
      to right,
      transparent calc(50% - 0.5px),
      rgba(240, 185, 11, 0.25) calc(50% - 0.5px),
      rgba(240, 185, 11, 0.25) calc(50% + 0.5px),
      transparent calc(50% + 0.5px)
    ),
    linear-gradient(
      to bottom,
      transparent calc(50% - 0.5px),
      rgba(240, 185, 11, 0.25) calc(50% - 0.5px),
      rgba(240, 185, 11, 0.25) calc(50% + 0.5px),
      transparent calc(50% + 0.5px)
    );
}

/* ==========================================================================
   关于我们
   ========================================================================== */
.about-section {
  padding: var(--space-20) 0;
  background: #0a0a0a;
}

.about-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-image {
  width: 100%;
  max-width: 460px;
  height: auto;
  display: block;
}

.about-title {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-5);
}

.about-desc {
  font-size: 14px;
  color: #999;
  line-height: 1.85;
  margin-bottom: var(--space-5);
  max-width: 440px;
}

.about-meta {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

/* ==========================================================================
   我们的愿景
   ========================================================================== */
.vision-section {
  background: #0a0a0a;
  padding: var(--space-20) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.vision-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--color-primary);
  font-weight: 500;
  margin-top: calc(-1 * var(--space-8));
  margin-bottom: var(--space-8);
}

.vision-deco {
  width: 100%;
  max-width: 680px;
  height: 180px;
  margin: 0 auto var(--space-10);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  max-width: 920px;
  margin: 0 auto;
}

.vision-card {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background: linear-gradient(180deg, #1a1a1a 0%, #0e0e0e 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease;
}
.vision-card:hover {
  transform: translateY(-2px);
  border-color: rgba(240, 185, 11, 0.3);
}

.vision-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  margin-bottom: var(--space-4);
}

.vision-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.vision-desc {
  font-size: 13px;
  color: #999;
  line-height: 1.7;
}

/* ==========================================================================
   响应式 · 平板
   ========================================================================== */
@media (max-width: 960px) {
  .hero-inner {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-visual-img {
    max-width: 420px;
    margin: 0 auto;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  .about-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .about-image {
    max-width: 360px;
  }

  .vision-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

/* ==========================================================================
   响应式 · 手机
   ========================================================================== */
@media (max-width: 640px) {
  .hero {
    background:
      radial-gradient(
        ellipse 80% 40% at 50% 25%,
        rgba(240, 185, 11, 0.15) 0%,
        transparent 65%
      ),
      #0a0a0a;
  }
  .hero-inner {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
    gap: var(--space-6);
  }
  .hero-title {
    font-size: 26px;
    line-height: 1.35;
  }
  .hero-desc {
    font-size: 13px;
    line-height: 1.8;
  }
  .btn {
    min-width: 120px;
    height: 40px;
    font-size: 14px;
  }
  .hero-visual-img {
    max-width: min(100%, 320px);
  }

  .section-title {
    font-size: 24px;
    margin-bottom: var(--space-8);
  }

  .advantages-section {
    padding: var(--space-12) 0;
  }
  .advantages-grid {
    gap: var(--space-3);
  }
  .advantage-card {
    padding: var(--space-6) var(--space-4);
  }
  .advantage-icon {
    width: 44px;
    height: 44px;
    margin-bottom: var(--space-3);
  }
  .advantage-title {
    font-size: 16px;
    margin-bottom: var(--space-2);
  }
  .advantage-desc {
    font-size: 12px;
    line-height: 1.7;
  }

  .about-section {
    padding: var(--space-12) 0;
  }
  .about-title {
    font-size: 24px;
  }
  .about-desc {
    font-size: 13px;
  }
  .about-meta {
    font-size: 14px;
  }
  .about-image {
    max-width: 280px;
  }

  .vision-section {
    padding: var(--space-12) 0;
  }
  .vision-subtitle {
    font-size: 13px;
    padding: 0 var(--space-4);
    margin-top: calc(-1 * var(--space-6));
  }
  .vision-deco {
    height: 120px;
  }
  .vision-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .vision-card {
    padding: var(--space-6) var(--space-5);
  }
  .vision-icon {
    width: 48px;
    height: 48px;
  }
  .vision-title {
    font-size: 16px;
  }
  .vision-desc {
    font-size: 12px;
  }
}
</style>
