diff --git a/frontend/src/composables/useSmsCountdown.ts b/frontend/src/composables/useSmsCountdown.ts
new file mode 100644
index 0000000..fde1101
--- /dev/null
+++ b/frontend/src/composables/useSmsCountdown.ts
@@ -0,0 +1,69 @@
+import { onUnmounted, ref } from "vue";
+import { showToast } from "vant";
+import { sendSmsCode } from "@/api/auth";
+
+export function useSmsCountdown() {
+  const countDown = ref(0);
+  const sending = ref(false);
+  let timer: ReturnType<typeof setInterval> | null = null;
+
+  function startCountDown() {
+    countDown.value = 60;
+    timer = setInterval(() => {
+      countDown.value--;
+      if (countDown.value <= 0) {
+        clearInterval(timer!);
+        timer = null;
+      }
+    }, 1000);
+  }
+
+  onUnmounted(() => {
+    if (timer) {
+      clearInterval(timer);
+      timer = null;
+    }
+  });
+
+  async function handleSendCode(phone: string) {
+    if (!phone.trim()) {
+      showToast({ message: "请输入手机号", icon: "warning-o" });
+      return false;
+    }
+
+    sending.value = true;
+    try {
+      await sendSmsCode(phone);
+      showToast({
+        message: "验证码已发送，开发环境请查看后端日志",
+        icon: "passed",
+      });
+      startCountDown();
+      return true;
+    } catch (error) {
+      showToast({
+        message: readError(error, "验证码发送失败，请稍后重试"),
+        icon: "cross",
+      });
+      return false;
+    } finally {
+      sending.value = false;
+    }
+  }
+
+  function readError(error: unknown, fallback: string) {
+    if (typeof error === "object" && error && "response" in error) {
+      const response = (error as { response?: { data?: { message?: string } } })
+        .response;
+      return response?.data?.message || fallback;
+    }
+    return fallback;
+  }
+
+  return {
+    countDown,
+    sending,
+    handleSendCode,
+    readError,
+  };
+}
diff --git a/frontend/src/main.ts b/frontend/src/main.ts
index 33365f3..a68bf46 100644
--- a/frontend/src/main.ts
+++ b/frontend/src/main.ts
@@ -2,6 +2,8 @@ import "element-plus/theme-chalk/el-message.css";
 import "element-plus/theme-chalk/el-message-box.css";
 import "vant/lib/index.css";
 import "./styles/base.css";
+import "./styles/pc.css";
+import "./styles/admin.css";
 
 import { createPinia } from "pinia";
 import { createApp } from "vue";
diff --git a/frontend/src/styles/admin.css b/frontend/src/styles/admin.css
new file mode 100644
index 0000000..166b6f1
--- /dev/null
+++ b/frontend/src/styles/admin.css
@@ -0,0 +1,241 @@
+.admin-shell {
+  display: grid;
+  min-height: 100vh;
+  grid-template-columns: 260px 1fr;
+  background: #f5f7fb;
+}
+
+.admin-sidebar {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+  border-right: 1px solid #dfe5ec;
+  background: #111827;
+  padding: 20px 16px;
+  color: #dbe4ee;
+}
+
+.admin-brand {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 44px;
+  color: #ffffff;
+  font-weight: 700;
+}
+
+.admin-nav {
+  display: grid;
+  gap: 6px;
+  margin-top: 28px;
+}
+
+.admin-nav-link {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 42px;
+  border-radius: 8px;
+  padding: 0 12px;
+  color: #b7c3d2;
+}
+
+.admin-nav-link.router-link-active {
+  background: #0f766e;
+  color: #ffffff;
+  font-weight: 600;
+}
+
+.admin-workspace {
+  min-width: 0;
+  overflow: hidden;
+}
+
+.admin-topbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  min-height: 64px;
+  border-bottom: 1px solid #e4e7ed;
+  background: #ffffff;
+  padding: 0 28px;
+}
+
+.admin-topbar span {
+  display: block;
+  color: #6b7785;
+  font-size: 12px;
+}
+
+.admin-topbar strong {
+  display: block;
+  margin-top: 3px;
+  color: #111827;
+}
+
+.admin-main {
+  width: 100%;
+  min-width: 0;
+  padding: 28px clamp(18px, 2.4vw, 36px);
+}
+
+.admin-main .page {
+  max-width: none;
+}
+
+.admin-login-shell {
+  display: grid;
+  min-height: 100vh;
+  place-items: center;
+  background: linear-gradient(
+      135deg,
+      rgba(15, 118, 110, 0.12),
+      rgba(17, 24, 39, 0.08)
+    ),
+    #f5f7fb;
+  padding: 24px;
+}
+
+.admin-login-panel {
+  width: min(420px, 100%);
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 28px;
+  box-shadow: 0 20px 60px rgba(17, 24, 39, 0.1);
+}
+
+.admin-login-brand {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+  color: #111827;
+  font-weight: 700;
+}
+
+.admin-login-header {
+  margin: 28px 0 22px;
+}
+
+.admin-login-header h1 {
+  font-size: 30px;
+}
+
+.admin-login-header p:last-child {
+  margin: 10px 0 0;
+  color: #52616f;
+}
+
+.admin-captcha-row {
+  display: grid;
+  grid-template-columns: 1fr 132px;
+  gap: 10px;
+  width: 100%;
+}
+
+.captcha-image-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 44px;
+  border: 1px solid #dcdfe6;
+  border-radius: 6px;
+  background: #ffffff;
+  padding: 0;
+  cursor: pointer;
+  overflow: hidden;
+}
+
+.captcha-image-button:disabled {
+  cursor: wait;
+  opacity: 0.7;
+}
+
+.captcha-image-button img {
+  display: block;
+  width: 132px;
+  height: 44px;
+}
+
+@media (max-width: 1180px) {
+  .admin-shell {
+    grid-template-columns: 220px 1fr;
+  }
+
+  .admin-sidebar {
+    padding: 18px 12px;
+  }
+
+  .admin-nav-link {
+    padding: 0 10px;
+  }
+}
+
+@media (max-width: 900px) {
+  .admin-shell {
+    grid-template-columns: 1fr;
+  }
+
+  .admin-sidebar {
+    position: sticky;
+    top: 0;
+    z-index: 10;
+    border-right: 0;
+    border-bottom: 1px solid #1f2937;
+    padding: 12px 14px;
+  }
+
+  .admin-brand {
+    min-height: 36px;
+  }
+
+  .admin-nav {
+    grid-auto-flow: column;
+    grid-auto-columns: max-content;
+    gap: 8px;
+    margin-top: 12px;
+    overflow-x: auto;
+    padding-bottom: 2px;
+  }
+
+  .admin-nav-link {
+    min-height: 38px;
+    white-space: nowrap;
+  }
+
+  .admin-topbar {
+    min-height: 58px;
+    padding: 0 16px;
+  }
+
+  .admin-main {
+    padding: 22px 16px;
+  }
+}
+
+@media (max-width: 520px) {
+  .admin-topbar {
+    align-items: flex-start;
+    flex-direction: column;
+    justify-content: center;
+    gap: 10px;
+    padding: 12px 16px;
+  }
+
+  .admin-topbar .el-button {
+    width: 100%;
+  }
+
+  .dashboard-panels {
+    grid-template-columns: 1fr;
+  }
+
+  .admin-captcha-row {
+    grid-template-columns: 1fr;
+  }
+
+  .captcha-image-button,
+  .captcha-image-button img {
+    width: 100%;
+  }
+}
diff --git a/frontend/src/styles/base.css b/frontend/src/styles/base.css
index 88ec32d..137a5ab 100644
--- a/frontend/src/styles/base.css
+++ b/frontend/src/styles/base.css
@@ -22,1384 +22,6 @@ a {
   text-decoration: none;
 }
 
-.app-shell {
-  display: grid;
-  min-height: 100vh;
-  grid-template-columns: 248px 1fr;
-}
-
-.sidebar {
-  border-right: 1px solid #e4e7ed;
-  background: #ffffff;
-  padding: 20px 16px;
-}
-
-.brand {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  min-height: 44px;
-  font-weight: 700;
-}
-
-.brand-mark {
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  width: 32px;
-  height: 32px;
-  border-radius: 8px;
-  background: #0f766e;
-  color: #ffffff;
-}
-
-.nav {
-  display: grid;
-  gap: 6px;
-  margin-top: 24px;
-}
-
-.nav-link {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  min-height: 40px;
-  border-radius: 8px;
-  padding: 0 12px;
-  color: #52616f;
-}
-
-.nav-link.router-link-active {
-  background: #e8f5f2;
-  color: #0f766e;
-  font-weight: 600;
-}
-
-.main {
-  min-width: 0;
-  padding: 32px;
-}
-
-.admin-shell {
-  display: grid;
-  min-height: 100vh;
-  grid-template-columns: 260px 1fr;
-  background: #f5f7fb;
-}
-
-.admin-sidebar {
-  display: flex;
-  flex-direction: column;
-  min-width: 0;
-  border-right: 1px solid #dfe5ec;
-  background: #111827;
-  padding: 20px 16px;
-  color: #dbe4ee;
-}
-
-.admin-brand {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  min-height: 44px;
-  color: #ffffff;
-  font-weight: 700;
-}
-
-.admin-nav {
-  display: grid;
-  gap: 6px;
-  margin-top: 28px;
-}
-
-.admin-nav-link {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  min-height: 42px;
-  border-radius: 8px;
-  padding: 0 12px;
-  color: #b7c3d2;
-}
-
-.admin-nav-link.router-link-active {
-  background: #0f766e;
-  color: #ffffff;
-  font-weight: 600;
-}
-
-.admin-workspace {
-  min-width: 0;
-  overflow: hidden;
-}
-
-.admin-topbar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  min-height: 64px;
-  border-bottom: 1px solid #e4e7ed;
-  background: #ffffff;
-  padding: 0 28px;
-}
-
-.admin-topbar span {
-  display: block;
-  color: #6b7785;
-  font-size: 12px;
-}
-
-.admin-topbar strong {
-  display: block;
-  margin-top: 3px;
-  color: #111827;
-}
-
-.admin-main {
-  width: 100%;
-  min-width: 0;
-  padding: 28px clamp(18px, 2.4vw, 36px);
-}
-
-.admin-main .page {
-  max-width: none;
-}
-
-.admin-login-shell {
-  display: grid;
-  min-height: 100vh;
-  place-items: center;
-  background: linear-gradient(
-      135deg,
-      rgba(15, 118, 110, 0.12),
-      rgba(17, 24, 39, 0.08)
-    ),
-    #f5f7fb;
-  padding: 24px;
-}
-
-.admin-login-panel {
-  width: min(420px, 100%);
-  border: 1px solid #e4e7ed;
-  border-radius: 8px;
-  background: #ffffff;
-  padding: 28px;
-  box-shadow: 0 20px 60px rgba(17, 24, 39, 0.1);
-}
-
-.admin-login-brand {
-  display: inline-flex;
-  align-items: center;
-  gap: 10px;
-  color: #111827;
-  font-weight: 700;
-}
-
-.admin-login-header {
-  margin: 28px 0 22px;
-}
-
-.admin-login-header h1 {
-  font-size: 30px;
-}
-
-.admin-login-header p:last-child {
-  margin: 10px 0 0;
-  color: #52616f;
-}
-
-.admin-captcha-row {
-  display: grid;
-  grid-template-columns: 1fr 132px;
-  gap: 10px;
-  width: 100%;
-}
-
-.captcha-image-button {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  height: 44px;
-  border: 1px solid #dcdfe6;
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-  background: #ffffff;
-  padding: 0;
-  cursor: pointer;
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-}
-
-.captcha-image-button:disabled {
-  cursor: wait;
-  opacity: 0.7;
-}
-
-.captcha-image-button img {
-  display: block;
-  width: 132px;
-  height: 44px;
-}
-
-.page {
-  width: 100%;
-  max-width: 1440px;
-}
-
-.page-header {
-  max-width: 720px;
-}
-
-.eyebrow {
-  margin: 0 0 8px;
-  color: #0f766e;
-  font-size: 13px;
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-.page-header p:last-child {
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-.metric-grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
-  gap: 16px;
-  margin-top: 28px;
-}
-
-.metric-card {
-  border: 1px solid #e4e7ed;
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-.metric-card span {
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-.metric-card strong {
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-.dashboard-metrics {
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-}
-
-.dashboard-panels {
-  display: grid;
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-  gap: 16px;
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-.dashboard-panel {
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-.pending-row {
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-.pending-row:first-of-type {
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-.pending-row strong {
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-.login-form {
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-.code-row {
-  display: grid;
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-.notice {
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-  margin-top: 24px;
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-.status-panel {
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-.status-panel span {
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-.status-panel p {
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-.listing-grid {
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-.listing-card {
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-.listing-card span {
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-.listing-card strong {
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-.listing-card p {
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-}
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-.notification-actions {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 8px;
-  justify-content: flex-end;
-}
-/* PC public marketplace */
-.pc-app-shell {
-  min-height: 100vh;
-  background: #f5f7fa;
-}
-
-.pc-topbar {
-  position: sticky;
-  top: 0;
-  z-index: 20;
-  display: grid;
-  grid-template-columns: auto auto minmax(260px, 420px) auto;
-  align-items: center;
-  gap: 18px;
-  min-height: 66px;
-  border-bottom: 1px solid #e8edf3;
-  background: rgba(255, 255, 255, 0.94);
-  padding: 0 clamp(20px, 4vw, 56px);
-  backdrop-filter: blur(12px);
-}
-
-.pc-brand,
-.pc-nav,
-.pc-user-actions,
-.pc-search,
-.pc-login-link,
-.pc-post-link,
-.pc-icon-link {
-  display: flex;
-  align-items: center;
-}
-
-.pc-brand {
-  gap: 10px;
-  font-weight: 800;
-}
-
-.pc-brand-mark {
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  width: 38px;
-  height: 38px;
-  border-radius: 12px;
-  background: #fff3e8;
-  color: #ff6a00;
-  font-size: 13px;
-  font-weight: 900;
-}
-
-.pc-brand-text {
-  color: #111827;
-  font-size: 17px;
-}
-
-.pc-nav {
-  gap: 6px;
-}
-
-.pc-nav-link {
-  display: inline-flex;
-  align-items: center;
-  gap: 7px;
-  min-height: 40px;
-  border-radius: 999px;
-  padding: 0 14px;
-  color: #4b5563;
-  font-size: 14px;
-  font-weight: 600;
-}
-
-.pc-nav-link.router-link-active,
-.pc-nav-link:hover {
-  background: #fff3e8;
-  color: #ff6a00;
-}
-
-.pc-search {
-  gap: 10px;
-  height: 40px;
-  border: 1px solid #edf1f6;
-  border-radius: 999px;
-  background: #f7f9fc;
-  padding: 0 16px;
-  color: #7b8798;
-}
-
-.pc-search input {
-  width: 100%;
-  border: 0;
-  outline: 0;
-  background: transparent;
-  color: #111827;
-  font-size: 14px;
-}
-
-.pc-user-actions {
-  justify-content: flex-end;
-  gap: 10px;
-}
-
-.pc-icon-link,
-.pc-login-link,
-.pc-post-link {
-  justify-content: center;
-  min-height: 40px;
-  border-radius: 999px;
-  font-weight: 700;
-}
-
-.pc-icon-link {
-  width: 40px;
-  border: 1px solid #e8edf3;
-  background: #ffffff;
-  color: #4b5563;
-}
-
-.pc-login-link {
-  gap: 6px;
-  border: 1px solid #e8edf3;
-  background: #ffffff;
-  padding: 0 14px;
-  color: #111827;
-}
-
-.pc-post-link {
-  gap: 6px;
-  background: #ff6a00;
-  padding: 0 16px;
-  color: #ffffff;
-  box-shadow: 0 10px 22px rgba(255, 106, 0, 0.18);
-}
-
-.pc-post-link.large {
-  min-height: 44px;
-  padding: 0 22px;
-}
-
-.pc-main {
-  width: min(1280px, calc(100% - 40px));
-  margin: 0 auto;
-  padding: 18px 0 56px;
-}
-
-.anti-fraud-strip {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-  min-height: 44px;
-  border: 1px solid #fde68a;
-  border-radius: 14px;
-  background: linear-gradient(90deg, #fffbeb, #fef3c7);
-  padding: 10px 16px;
-  color: #92400e;
-  font-size: 14px;
-  font-weight: 600;
-}
-
-.anti-fraud-strip.compact {
-  margin-bottom: 22px;
-}
-
-.pc-hero {
-  display: grid;
-  grid-template-columns: minmax(0, 1fr) 340px;
-  gap: 24px;
-  margin-top: 18px;
-}
-
-.pc-hero-content,
-.pc-action-card,
-.advanced-filter-card,
-.resource-card,
-.feature-card,
-.pc-stat-card {
-  border: 1px solid rgba(229, 231, 235, 0.9);
-  background: rgba(255, 255, 255, 0.92);
-  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.08);
-}
-
-.pc-hero-content {
-  min-height: 360px;
-  border-radius: 28px;
-  background: linear-gradient(
-      135deg,
-      rgba(17, 24, 39, 0.82),
-      rgba(120, 53, 15, 0.72)
-    ),
-    radial-gradient(circle at 82% 20%, rgba(251, 191, 36, 0.9), transparent 24%),
-    #111827;
-  padding: 48px;
-  color: #ffffff;
-  overflow: hidden;
-}
-
-.pc-hero-content .eyebrow {
-  color: #fbbf24;
-}
-
-.pc-hero h1 {
-  max-width: 620px;
-  font-size: clamp(40px, 5vw, 64px);
-  letter-spacing: -2px;
-}
-
-.pc-hero-desc {
-  max-width: 560px;
-  margin: 18px 0 0;
-  color: rgba(255, 255, 255, 0.78);
-  font-size: 18px;
-  line-height: 1.8;
-}
-
-.pc-hero-actions,
-.hero-tags,
-.sort-toolbar,
-.resource-tags,
-.resource-title-line {
-  display: flex;
-  align-items: center;
-}
-
-.pc-hero-actions {
-  gap: 14px;
-  margin-top: 32px;
-}
-
-.primary-cta,
-.secondary-cta {
-  display: inline-flex;
-  align-items: center;
-  justify-content: center;
-  min-height: 46px;
-  border-radius: 999px;
-  padding: 0 22px;
-  font-weight: 800;
-}
-
-.primary-cta {
-  gap: 8px;
-  background: #fbbf24;
-  color: #111827;
-}
-
-.secondary-cta {
-  border: 1px solid rgba(255, 255, 255, 0.28);
-  color: #ffffff;
-}
-
-.hero-tags {
-  flex-wrap: wrap;
-  gap: 10px;
-  margin-top: 34px;
-}
-
-.hero-tags span {
-  border: 1px solid rgba(255, 255, 255, 0.22);
-  border-radius: 999px;
-  background: rgba(255, 255, 255, 0.1);
-  padding: 8px 12px;
-  color: #fde68a;
-  font-size: 13px;
-}
-
-.pc-action-card {
-  border-radius: 24px;
-  padding: 22px;
-}
-
-.pc-action-card h2 {
-  margin: 0 0 18px;
-  font-size: 20px;
-}
-
-.action-row {
-  display: grid;
-  grid-template-columns: 42px 1fr;
-  gap: 12px;
-  align-items: center;
-  border: 1px solid #edf0f4;
-  border-radius: 16px;
-  background: #ffffff;
-  padding: 14px;
-}
-
-.action-row + .action-row {
-  margin-top: 12px;
-}
-
-.action-row .el-icon {
-  width: 42px;
-  height: 42px;
-  border-radius: 14px;
-  background: #fff7ed;
-  color: #ea580c;
-  font-size: 20px;
-}
-
-.action-row strong,
-.action-row span {
-  display: block;
-}
-
-.action-row strong {
-  color: #111827;
-}
-
-.action-row span {
-  margin-top: 4px;
-  color: #6b7280;
-  font-size: 13px;
-  line-height: 1.5;
-}
-
-.action-row.highlight {
-  border-color: #fbbf24;
-  background: #fffbeb;
-}
-
-.pc-stat-grid,
-.pc-feature-row {
-  display: grid;
-  grid-template-columns: repeat(3, minmax(0, 1fr));
-  gap: 16px;
-  margin-top: 20px;
-}
-
-.pc-stat-card,
-.feature-card {
-  border-radius: 20px;
-  padding: 20px;
-}
-
-.pc-stat-card span,
-.feature-card span {
-  color: #6b7280;
-  font-size: 13px;
-}
-
-.pc-stat-card strong,
-.feature-card strong {
-  display: block;
-  margin-top: 8px;
-  color: #111827;
-  font-size: 24px;
-}
-
-.pc-stat-card p {
-  margin: 8px 0 0;
-  color: #6b7280;
-}
-
-.feature-card .el-icon {
-  color: #f59e0b;
-  font-size: 24px;
-}
-
-.feature-card strong {
-  font-size: 18px;
-}
-
-.listings-header {
-  align-items: center;
-  margin-bottom: 18px;
-}
-
-.advanced-filter-card {
-  border-radius: 22px;
-  padding: 20px;
-}
-
-.filter-title,
-.sort-toolbar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 16px;
-}
-
-.filter-title strong {
-  color: #111827;
-  font-size: 18px;
-}
-
-.filter-title span {
-  color: #6b7280;
-}
-
-.pc-filter-grid {
-  display: grid;
-  grid-template-columns: 1.25fr repeat(4, minmax(0, 1fr));
-  gap: 14px;
-  margin-top: 16px;
-}
-
-.pc-filter-grid .el-form-item {
-  margin-bottom: 0;
-}
-
-.sort-toolbar {
-  margin-top: 16px;
-}
-
-.pc-resource-list {
-  display: grid;
-  gap: 14px;
-  margin-top: 18px;
-}
-
-.resource-card {
-  display: grid;
-  grid-template-columns: 150px minmax(0, 1fr) 150px;
-  gap: 18px;
-  align-items: center;
-  border-radius: 22px;
-  padding: 14px;
-  transition: transform 0.18s ease, box-shadow 0.18s ease;
-}
-
-.resource-card:hover {
-  transform: translateY(-2px);
-  box-shadow: 0 22px 50px rgba(17, 24, 39, 0.12);
-}
-
-.resource-cover {
-  display: grid;
-  place-items: center;
-  height: 108px;
-  border-radius: 18px;
-  background: linear-gradient(135deg, #111827, #f59e0b);
-  color: #ffffff;
-  font-weight: 900;
-  overflow: hidden;
-}
-
-.resource-cover img {
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-}
-
-.resource-title-line {
-  justify-content: space-between;
-  gap: 12px;
-}
-
-.resource-title-line strong {
-  color: #111827;
-  font-size: 19px;
-}
-
-.resource-title-line em {
-  border-radius: 999px;
-  background: #dcfce7;
-  padding: 4px 10px;
-  color: #166534;
-  font-size: 12px;
-  font-style: normal;
-  font-weight: 700;
-}
-
-.resource-main p {
-  display: -webkit-box;
-  margin: 10px 0 0;
-  overflow: hidden;
-  color: #6b7280;
-  line-height: 1.6;
-  -webkit-box-orient: vertical;
-  -webkit-line-clamp: 2;
-}
-
-.resource-tags {
-  flex-wrap: wrap;
-  gap: 8px;
-  margin-top: 12px;
-}
-
-.resource-tags span {
-  border-radius: 999px;
-  background: #f3f4f6;
-  padding: 5px 10px;
-  color: #4b5563;
-  font-size: 12px;
-}
-
-.resource-price-box {
-  border-left: 1px solid #edf0f4;
-  padding-left: 18px;
-  text-align: right;
-}
-
-.resource-price-box span,
-.resource-price-box em,
-.resource-price-box small {
-  display: block;
-  color: #6b7280;
-  font-style: normal;
-}
-
-.resource-price-box strong {
-  display: block;
-  margin: 4px 0;
-  color: #ef4444;
-  font-size: 28px;
-}
-
-.pc-detail-layout {
-  display: grid;
-  grid-template-columns: minmax(0, 1fr) 360px;
-  gap: 22px;
-}
-
-.pc-detail-main,
-.pc-order-card {
-  border: 1px solid rgba(229, 231, 235, 0.9);
-  border-radius: 24px;
-  background: #ffffff;
-  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.08);
-}
-
-.pc-detail-main {
-  overflow: hidden;
-}
-
-.detail-cover {
-  display: grid;
-  place-items: center;
-  height: 300px;
-  background: linear-gradient(135deg, #111827, #92400e 54%, #f59e0b);
-  color: #ffffff;
-  font-size: 28px;
-  font-weight: 900;
-  letter-spacing: 1px;
-}
-
-.detail-cover img {
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-}
-
-.detail-title {
-  padding: 28px;
-}
-
-.pc-detail .detail-grid {
-  grid-template-columns: repeat(4, minmax(0, 1fr));
-  margin: 0;
-  padding: 0 28px 28px;
-}
-
-.pc-order-card {
-  position: sticky;
-  top: 96px;
-  align-self: start;
-  margin-top: 0;
-  padding: 24px;
-}
-
-.pc-order-card h2 {
-  margin: 0 0 8px;
-  font-size: 22px;
-}
-
-.order-safe-text {
-  margin: 0 0 18px;
-  color: #6b7280;
-  line-height: 1.7;
-}
-
-.order-total-box {
-  border-radius: 18px;
-  background: #fffbeb;
-  margin-bottom: 16px;
-  padding: 16px;
-}
-
-.order-total-box span,
-.order-total-box em {
-  display: block;
-  color: #92400e;
-  font-style: normal;
-}
-
-.order-total-box strong {
-  display: block;
-  margin: 4px 0;
-  color: #ef4444;
-  font-size: 30px;
-}
-
-@media (max-width: 1180px) {
-  .pc-topbar {
-    grid-template-columns: auto 1fr auto;
-  }
-
-  .pc-search {
-    display: none;
-  }
-
-  .pc-hero,
-  .pc-filter-grid,
-  .pc-detail-layout,
-  .pc-detail .detail-grid {
-    grid-template-columns: 1fr;
-  }
-
-  .pc-order-card {
-    position: static;
-  }
-
-  .resource-card {
-    grid-template-columns: 120px minmax(0, 1fr);
-  }
-
-  .resource-price-box {
-    grid-column: 2;
-    border-left: 0;
-    border-top: 1px solid #edf0f4;
-    padding: 12px 0 0;
-    text-align: left;
-  }
-}
-
-@media (max-width: 1180px) {
-  .admin-shell {
-    grid-template-columns: 220px 1fr;
-  }
-
-  .admin-sidebar {
-    padding: 18px 12px;
-  }
-
-  .admin-nav-link {
-    padding: 0 10px;
-  }
-}
-
-@media (max-width: 900px) {
-  .admin-shell {
-    grid-template-columns: 1fr;
-  }
-
-  .admin-sidebar {
-    position: sticky;
-    top: 0;
-    z-index: 10;
-    border-right: 0;
-    border-bottom: 1px solid #1f2937;
-    padding: 12px 14px;
-  }
-
-  .admin-brand {
-    min-height: 36px;
-  }
-
-  .admin-nav {
-    grid-auto-flow: column;
-    grid-auto-columns: max-content;
-    gap: 8px;
-    margin-top: 12px;
-    overflow-x: auto;
-    padding-bottom: 2px;
-  }
-
-  .admin-nav-link {
-    min-height: 38px;
-    white-space: nowrap;
-  }
-
-  .admin-topbar {
-    min-height: 58px;
-    padding: 0 16px;
-  }
-
-  .admin-main {
-    padding: 22px 16px;
-  }
-}
-
-@media (max-width: 760px) {
-  .app-shell {
-    grid-template-columns: 1fr;
-  }
-
-  .sidebar {
-    position: sticky;
-    top: 0;
-    z-index: 10;
-    border-right: 0;
-    border-bottom: 1px solid #e4e7ed;
-  }
-
-  .nav {
-    grid-auto-flow: column;
-    grid-auto-columns: max-content;
-    overflow-x: auto;
-  }
-
-  .main {
-    padding: 24px 16px;
-  }
-
-  .metric-grid {
-    grid-template-columns: 1fr;
-  }
-
-  .listing-grid,
-  .detail-grid,
-  .dashboard-metrics,
-  .dashboard-panels,
-  .form-grid {
-    grid-template-columns: 1fr;
-  }
-
-  .page-header-row {
-    display: grid;
-  }
-
-  .toolbar-actions {
-    justify-content: flex-start;
-  }
-}
-
-@media (max-width: 520px) {
-  .admin-topbar {
-    align-items: flex-start;
-    flex-direction: column;
-    justify-content: center;
-    gap: 10px;
-    padding: 12px 16px;
-  }
-
-  .admin-topbar .el-button {
-    width: 100%;
-  }
-
-  .dashboard-panels {
-    grid-template-columns: 1fr;
-  }
-
-  .admin-captcha-row,
-  .code-row {
-    grid-template-columns: 1fr;
-  }
-
-  .captcha-image-button,
-  .captcha-image-button img {
-    width: 100%;
-  }
-}
-
 /* ── Vant Toast 保护规则 ──────────────────────────────────
    .van-popup 声明 background: var(--van-popup-background) = #fff (白色)
    .van-toast 声明 background: var(--van-toast-background) = rgba(0,0,0,.7) (黑色)
diff --git a/frontend/src/styles/pc.css b/frontend/src/styles/pc.css
new file mode 100644
index 0000000..e59c080
--- /dev/null
+++ b/frontend/src/styles/pc.css
@@ -0,0 +1,1135 @@
+.app-shell {
+  display: grid;
+  min-height: 100vh;
+  grid-template-columns: 248px 1fr;
+}
+
+.sidebar {
+  border-right: 1px solid #e4e7ed;
+  background: #ffffff;
+  padding: 20px 16px;
+}
+
+.brand {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 44px;
+  font-weight: 700;
+}
+
+.brand-mark {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  border-radius: 8px;
+  background: #0f766e;
+  color: #ffffff;
+}
+
+.nav {
+  display: grid;
+  gap: 6px;
+  margin-top: 24px;
+}
+
+.nav-link {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 40px;
+  border-radius: 8px;
+  padding: 0 12px;
+  color: #52616f;
+}
+
+.nav-link.router-link-active {
+  background: #e8f5f2;
+  color: #0f766e;
+  font-weight: 600;
+}
+
+.main {
+  min-width: 0;
+  padding: 32px;
+}
+
+.page {
+  width: 100%;
+  max-width: 1440px;
+}
+
+.page-header {
+  max-width: 720px;
+}
+
+.eyebrow {
+  margin: 0 0 8px;
+  color: #0f766e;
+  font-size: 13px;
+  font-weight: 700;
+  text-transform: uppercase;
+}
+
+h1 {
+  margin: 0;
+  font-size: 32px;
+  line-height: 1.2;
+}
+
+.page-header p:last-child {
+  margin: 12px 0 0;
+  color: #52616f;
+  line-height: 1.7;
+}
+
+.metric-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+  gap: 16px;
+  margin-top: 28px;
+}
+
+.metric-card {
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 18px;
+}
+
+.metric-card span {
+  display: block;
+  color: #6b7785;
+  font-size: 13px;
+}
+
+.metric-card strong {
+  display: block;
+  margin-top: 8px;
+  font-size: 20px;
+}
+
+.dashboard-metrics {
+  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
+}
+
+.dashboard-panels {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
+  gap: 16px;
+}
+
+.dashboard-panel {
+  max-width: none;
+}
+
+.pending-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  min-height: 40px;
+  border-top: 1px solid #e4e7ed;
+  color: #52616f;
+}
+
+.pending-row:first-of-type {
+  border-top: 0;
+}
+
+.pending-row strong {
+  color: #111827;
+}
+
+.login-form {
+  max-width: 420px;
+  margin-top: 28px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 20px;
+}
+
+.code-row {
+  display: grid;
+  grid-template-columns: 1fr 96px;
+  gap: 10px;
+  width: 100%;
+}
+
+.notice {
+  max-width: 520px;
+  margin-top: 24px;
+}
+
+.status-panel {
+  max-width: 520px;
+  margin-top: 24px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 18px;
+}
+
+.status-panel span {
+  color: #6b7785;
+  font-size: 13px;
+}
+
+.status-panel strong {
+  display: block;
+  margin-top: 6px;
+  color: #0f766e;
+  font-size: 22px;
+}
+
+.status-panel p {
+  margin: 8px 0 0;
+  color: #52616f;
+}
+
+.listing-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 16px;
+  margin-top: 28px;
+}
+
+.listing-card {
+  display: block;
+  min-height: 172px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 18px;
+}
+
+.listing-card span {
+  color: #0f766e;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.listing-card strong {
+  display: block;
+  margin-top: 10px;
+  font-size: 20px;
+}
+
+.listing-card p {
+  color: #52616f;
+  line-height: 1.6;
+}
+
+.listing-price {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  margin-top: 18px;
+}
+
+.listing-price b {
+  color: #111827;
+}
+
+.listing-price em {
+  color: #6b7785;
+  font-style: normal;
+}
+
+.detail-grid {
+  display: grid;
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  gap: 16px;
+  margin-top: 28px;
+}
+
+.page-header-row {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 20px;
+  max-width: 100%;
+}
+
+.table-panel,
+.listing-form {
+  margin-top: 28px;
+}
+
+.table-panel {
+  width: 100%;
+  overflow-x: auto;
+}
+
+.table-panel .el-table__inner-wrapper {
+  min-width: 760px;
+}
+
+.listing-form {
+  max-width: 860px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 20px;
+}
+
+.form-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  column-gap: 16px;
+}
+
+.order-panel {
+  max-width: min(100%, 560px);
+  margin-top: 28px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 20px;
+}
+
+.order-panel p {
+  margin: 0 0 12px;
+  color: #52616f;
+}
+
+.order-panel h2 {
+  margin: 0 0 14px;
+  font-size: 18px;
+}
+
+.timeline-item {
+  border-top: 1px solid #e4e7ed;
+  padding: 14px 0;
+}
+
+.timeline-item:first-of-type {
+  border-top: 0;
+}
+
+.timeline-item strong {
+  display: block;
+}
+
+.timeline-item span {
+  color: #6b7785;
+  font-size: 13px;
+}
+
+.panel-action {
+  margin-top: 14px;
+}
+
+.upload-line input {
+  width: 100%;
+}
+
+.upload-stack {
+  display: grid;
+  gap: 10px;
+  width: 100%;
+}
+
+.upload-line {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 10px;
+  align-items: center;
+  width: 100%;
+}
+
+.evidence-list {
+  display: grid;
+  gap: 8px;
+}
+
+.evidence-row {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto;
+  gap: 10px;
+  align-items: center;
+}
+
+.evidence-row span {
+  overflow-wrap: anywhere;
+  color: #52616f;
+}
+
+.full-control {
+  width: 100%;
+}
+
+.dialog-body {
+  display: grid;
+  gap: 10px;
+}
+
+.dialog-body p {
+  margin: 0;
+  color: #52616f;
+  line-height: 1.6;
+}
+
+.toolbar-actions {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 8px;
+  justify-content: flex-end;
+}
+
+.filter-panel {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  gap: 12px 16px;
+  margin-top: 24px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 16px;
+}
+
+.filter-panel .el-form-item {
+  margin-bottom: 0;
+}
+
+.table-subtext {
+  display: block;
+  margin-top: 4px;
+  color: #6b7785;
+  font-size: 12px;
+}
+
+.code-panel {
+  max-width: none;
+}
+
+.code-panel pre {
+  overflow-x: auto;
+  margin: 0;
+  border-radius: 6px;
+  background: #111827;
+  color: #dbe4ee;
+  padding: 14px;
+  line-height: 1.6;
+}
+
+.notification-list {
+  display: grid;
+  gap: 12px;
+  margin-top: 28px;
+}
+
+.notification-item {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 16px;
+  border: 1px solid #e4e7ed;
+  border-radius: 8px;
+  background: #ffffff;
+  padding: 16px;
+}
+
+.notification-item.unread {
+  border-color: #0f766e;
+}
+
+.notification-item span {
+  color: #0f766e;
+  font-size: 13px;
+  font-weight: 700;
+}
+
+.notification-item h2 {
+  margin: 6px 0;
+  font-size: 18px;
+}
+
+.notification-item p {
+  margin: 0 0 8px;
+  color: #52616f;
+}
+
+.notification-item small {
+  color: #6b7785;
+}
+
+.notification-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  justify-content: flex-end;
+}
+
+/* PC public marketplace */
+.pc-app-shell {
+  min-height: 100vh;
+  background: #f5f7fa;
+}
+
+.pc-topbar {
+  position: sticky;
+  top: 0;
+  z-index: 20;
+  display: grid;
+  grid-template-columns: auto auto minmax(260px, 420px) auto;
+  align-items: center;
+  gap: 18px;
+  min-height: 66px;
+  border-bottom: 1px solid #e8edf3;
+  background: rgba(255, 255, 255, 0.94);
+  padding: 0 clamp(20px, 4vw, 56px);
+  backdrop-filter: blur(12px);
+}
+
+.pc-brand,
+.pc-nav,
+.pc-user-actions,
+.pc-search,
+.pc-login-link,
+.pc-post-link,
+.pc-icon-link {
+  display: flex;
+  align-items: center;
+}
+
+.pc-brand {
+  gap: 10px;
+  font-weight: 800;
+}
+
+.pc-brand-mark {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 38px;
+  height: 38px;
+  border-radius: 12px;
+  background: #fff3e8;
+  color: #ff6a00;
+  font-size: 13px;
+  font-weight: 900;
+}
+
+.pc-brand-text {
+  color: #111827;
+  font-size: 17px;
+}
+
+.pc-nav {
+  gap: 6px;
+}
+
+.pc-nav-link {
+  display: inline-flex;
+  align-items: center;
+  gap: 7px;
+  min-height: 40px;
+  border-radius: 999px;
+  padding: 0 14px;
+  color: #4b5563;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.pc-nav-link.router-link-active,
+.pc-nav-link:hover {
+  background: #fff3e8;
+  color: #ff6a00;
+}
+
+.pc-search {
+  gap: 10px;
+  height: 40px;
+  border: 1px solid #edf1f6;
+  border-radius: 999px;
+  background: #f7f9fc;
+  padding: 0 16px;
+  color: #7b8798;
+}
+
+.pc-search input {
+  width: 100%;
+  border: 0;
+  outline: 0;
+  background: transparent;
+  color: #111827;
+  font-size: 14px;
+}
+
+.pc-user-actions {
+  justify-content: flex-end;
+  gap: 10px;
+}
+
+.pc-icon-link,
+.pc-login-link,
+.pc-post-link {
+  justify-content: center;
+  min-height: 40px;
+  border-radius: 999px;
+  font-weight: 700;
+}
+
+.pc-icon-link {
+  width: 40px;
+  border: 1px solid #e8edf3;
+  background: #ffffff;
+  color: #4b5563;
+}
+
+.pc-login-link {
+  gap: 6px;
+  border: 1px solid #e8edf3;
+  background: #ffffff;
+  padding: 0 14px;
+  color: #111827;
+}
+
+.pc-post-link {
+  gap: 6px;
+  background: #ff6a00;
+  padding: 0 16px;
+  color: #ffffff;
+  box-shadow: 0 10px 22px rgba(255, 106, 0, 0.18);
+}
+
+.pc-post-link.large {
+  min-height: 44px;
+  padding: 0 22px;
+}
+
+.pc-main {
+  width: min(1280px, calc(100% - 40px));
+  margin: 0 auto;
+  padding: 18px 0 56px;
+}
+
+.anti-fraud-strip {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  min-height: 44px;
+  border: 1px solid #fde68a;
+  border-radius: 14px;
+  background: linear-gradient(90deg, #fffbeb, #fef3c7);
+  padding: 10px 16px;
+  color: #92400e;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.anti-fraud-strip.compact {
+  margin-bottom: 22px;
+}
+
+.pc-hero {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 340px;
+  gap: 24px;
+  margin-top: 18px;
+}
+
+.pc-hero-content,
+.pc-action-card,
+.advanced-filter-card,
+.resource-card,
+.feature-card,
+.pc-stat-card {
+  border: 1px solid rgba(229, 231, 235, 0.9);
+  background: rgba(255, 255, 255, 0.92);
+  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.08);
+}
+
+.pc-hero-content {
+  min-height: 360px;
+  border-radius: 28px;
+  background: linear-gradient(
+      135deg,
+      rgba(17, 24, 39, 0.82),
+      rgba(120, 53, 15, 0.72)
+    ),
+    radial-gradient(circle at 82% 20%, rgba(251, 191, 36, 0.9), transparent 24%),
+    #111827;
+  padding: 48px;
+  color: #ffffff;
+  overflow: hidden;
+}
+
+.pc-hero-content .eyebrow {
+  color: #fbbf24;
+}
+
+.pc-hero h1 {
+  max-width: 620px;
+  font-size: clamp(40px, 5vw, 64px);
+  letter-spacing: -2px;
+}
+
+.pc-hero-desc {
+  max-width: 560px;
+  margin: 18px 0 0;
+  color: rgba(255, 255, 255, 0.78);
+  font-size: 18px;
+  line-height: 1.8;
+}
+
+.pc-hero-actions,
+.hero-tags,
+.sort-toolbar,
+.resource-tags,
+.resource-title-line {
+  display: flex;
+  align-items: center;
+}
+
+.pc-hero-actions {
+  gap: 14px;
+  margin-top: 32px;
+}
+
+.primary-cta,
+.secondary-cta {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 46px;
+  border-radius: 999px;
+  padding: 0 22px;
+  font-weight: 800;
+}
+
+.primary-cta {
+  gap: 8px;
+  background: #fbbf24;
+  color: #111827;
+}
+
+.secondary-cta {
+  border: 1px solid rgba(255, 255, 255, 0.28);
+  color: #ffffff;
+}
+
+.hero-tags {
+  flex-wrap: wrap;
+  gap: 10px;
+  margin-top: 34px;
+}
+
+.hero-tags span {
+  border: 1px solid rgba(255, 255, 255, 0.22);
+  border-radius: 999px;
+  background: rgba(255, 255, 255, 0.1);
+  padding: 8px 12px;
+  color: #fde68a;
+  font-size: 13px;
+}
+
+.pc-action-card {
+  border-radius: 24px;
+  padding: 22px;
+}
+
+.pc-action-card h2 {
+  margin: 0 0 18px;
+  font-size: 20px;
+}
+
+.action-row {
+  display: grid;
+  grid-template-columns: 42px 1fr;
+  gap: 12px;
+  align-items: center;
+  border: 1px solid #edf0f4;
+  border-radius: 16px;
+  background: #ffffff;
+  padding: 14px;
+}
+
+.action-row + .action-row {
+  margin-top: 12px;
+}
+
+.action-row .el-icon {
+  width: 42px;
+  height: 42px;
+  border-radius: 14px;
+  background: #fff7ed;
+  color: #ea580c;
+  font-size: 20px;
+}
+
+.action-row strong,
+.action-row span {
+  display: block;
+}
+
+.action-row strong {
+  color: #111827;
+}
+
+.action-row span {
+  margin-top: 4px;
+  color: #6b7280;
+  font-size: 13px;
+  line-height: 1.5;
+}
+
+.action-row.highlight {
+  border-color: #fbbf24;
+  background: #fffbeb;
+}
+
+.pc-stat-grid,
+.pc-feature-row {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 16px;
+  margin-top: 20px;
+}
+
+.pc-stat-card,
+.feature-card {
+  border-radius: 20px;
+  padding: 20px;
+}
+
+.pc-stat-card span,
+.feature-card span {
+  color: #6b7280;
+  font-size: 13px;
+}
+
+.pc-stat-card strong,
+.feature-card strong {
+  display: block;
+  margin-top: 8px;
+  color: #111827;
+  font-size: 24px;
+}
+
+.pc-stat-card p {
+  margin: 8px 0 0;
+  color: #6b7280;
+}
+
+.feature-card .el-icon {
+  color: #f59e0b;
+  font-size: 24px;
+}
+
+.feature-card strong {
+  font-size: 18px;
+}
+
+.listings-header {
+  align-items: center;
+  margin-bottom: 18px;
+}
+
+.advanced-filter-card {
+  border-radius: 22px;
+  padding: 20px;
+}
+
+.filter-title,
+.sort-toolbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+}
+
+.filter-title strong {
+  color: #111827;
+  font-size: 18px;
+}
+
+.filter-title span {
+  color: #6b7280;
+}
+
+.pc-filter-grid {
+  display: grid;
+  grid-template-columns: 1.25fr repeat(4, minmax(0, 1fr));
+  gap: 14px;
+  margin-top: 16px;
+}
+
+.pc-filter-grid .el-form-item {
+  margin-bottom: 0;
+}
+
+.sort-toolbar {
+  margin-top: 16px;
+}
+
+.pc-resource-list {
+  display: grid;
+  gap: 14px;
+  margin-top: 18px;
+}
+
+.resource-card {
+  display: grid;
+  grid-template-columns: 150px minmax(0, 1fr) 150px;
+  gap: 18px;
+  align-items: center;
+  border-radius: 22px;
+  padding: 14px;
+  transition: transform 0.18s ease, box-shadow 0.18s ease;
+}
+
+.resource-card:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 22px 50px rgba(17, 24, 39, 0.12);
+}
+
+.resource-cover {
+  display: grid;
+  place-items: center;
+  height: 108px;
+  border-radius: 18px;
+  background: linear-gradient(135deg, #111827, #f59e0b);
+  color: #ffffff;
+  font-weight: 900;
+  overflow: hidden;
+}
+
+.resource-cover img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.resource-title-line {
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.resource-title-line strong {
+  color: #111827;
+  font-size: 19px;
+}
+
+.resource-title-line em {
+  border-radius: 999px;
+  background: #dcfce7;
+  padding: 4px 10px;
+  color: #166534;
+  font-size: 12px;
+  font-style: normal;
+  font-weight: 700;
+}
+
+.resource-main p {
+  display: -webkit-box;
+  margin: 10px 0 0;
+  overflow: hidden;
+  color: #6b7280;
+  line-height: 1.6;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 2;
+}
+
+.resource-tags {
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 12px;
+}
+
+.resource-tags span {
+  border-radius: 999px;
+  background: #f3f4f6;
+  padding: 5px 10px;
+  color: #4b5563;
+  font-size: 12px;
+}
+
+.resource-price-box {
+  border-left: 1px solid #edf0f4;
+  padding-left: 18px;
+  text-align: right;
+}
+
+.resource-price-box span,
+.resource-price-box em,
+.resource-price-box small {
+  display: block;
+  color: #6b7280;
+  font-style: normal;
+}
+
+.resource-price-box strong {
+  display: block;
+  margin: 4px 0;
+  color: #ef4444;
+  font-size: 28px;
+}
+
+.pc-detail-layout {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 360px;
+  gap: 22px;
+}
+
+.pc-detail-main,
+.pc-order-card {
+  border: 1px solid rgba(229, 231, 235, 0.9);
+  border-radius: 24px;
+  background: #ffffff;
+  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.08);
+}
+
+.pc-detail-main {
+  overflow: hidden;
+}
+
+.detail-cover {
+  display: grid;
+  place-items: center;
+  height: 300px;
+  background: linear-gradient(135deg, #111827, #92400e 54%, #f59e0b);
+  color: #ffffff;
+  font-size: 28px;
+  font-weight: 900;
+  letter-spacing: 1px;
+}
+
+.detail-cover img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.detail-title {
+  padding: 28px;
+}
+
+.pc-detail .detail-grid {
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+  margin: 0;
+  padding: 0 28px 28px;
+}
+
+.pc-order-card {
+  position: sticky;
+  top: 96px;
+  align-self: start;
+  margin-top: 0;
+  padding: 24px;
+}
+
+.pc-order-card h2 {
+  margin: 0 0 8px;
+  font-size: 22px;
+}
+
+.order-safe-text {
+  margin: 0 0 18px;
+  color: #6b7280;
+  line-height: 1.7;
+}
+
+.order-total-box {
+  border-radius: 18px;
+  background: #fffbeb;
+  margin-bottom: 16px;
+  padding: 16px;
+}
+
+.order-total-box span,
+.order-total-box em {
+  display: block;
+  color: #92400e;
+  font-style: normal;
+}
+
+.order-total-box strong {
+  display: block;
+  margin: 4px 0;
+  color: #ef4444;
+  font-size: 30px;
+}
+
+@media (max-width: 1180px) {
+  .pc-topbar {
+    grid-template-columns: auto 1fr auto;
+  }
+
+  .pc-search {
+    display: none;
+  }
+
+  .pc-hero,
+  .pc-filter-grid,
+  .pc-detail-layout,
+  .pc-detail .detail-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .pc-order-card {
+    position: static;
+  }
+
+  .resource-card {
+    grid-template-columns: 120px minmax(0, 1fr);
+  }
+
+  .resource-price-box {
+    grid-column: 2;
+    border-left: 0;
+    border-top: 1px solid #edf0f4;
+    padding: 12px 0 0;
+    text-align: left;
+  }
+}
+
+@media (max-width: 760px) {
+  .app-shell {
+    grid-template-columns: 1fr;
+  }
+
+  .sidebar {
+    position: sticky;
+    top: 0;
+    z-index: 10;
+    border-right: 0;
+    border-bottom: 1px solid #e4e7ed;
+  }
+
+  .nav {
+    grid-auto-flow: column;
+    grid-auto-columns: max-content;
+    overflow-x: auto;
+  }
+
+  .main {
+    padding: 24px 16px;
+  }
+
+  .metric-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .listing-grid,
+  .detail-grid,
+  .dashboard-metrics,
+  .dashboard-panels,
+  .form-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .page-header-row {
+    display: grid;
+  }
+
+  .toolbar-actions {
+    justify-content: flex-start;
+  }
+}
diff --git a/frontend/src/views/mobile/MobileLoginView.vue b/frontend/src/views/mobile/MobileLoginView.vue
index aae5d4f..9df2b56 100644
--- a/frontend/src/views/mobile/MobileLoginView.vue
+++ b/frontend/src/views/mobile/MobileLoginView.vue
@@ -1,76 +1,22 @@
 <script setup lang="ts">
-import { onUnmounted, reactive, ref } from "vue";
+import { reactive, ref } from "vue";
 import { RouterLink, useRoute, useRouter } from "vue-router";
 import { showToast, showDialog } from "vant";
 
-import { sendSmsCode } from "@/api/auth";
 import { useSessionStore } from "@/stores/session";
+import { useSmsCountdown } from "@/composables/useSmsCountdown";
 
 const router = useRouter();
 const route = useRoute();
 const session = useSessionStore();
 const loading = ref(false);
-const sending = ref(false);
 const agreed = ref(false);
 const form = reactive({
   phone: "",
   code: "",
 });
 
-const countDown = ref(0);
-let timer: ReturnType<typeof setInterval> | null = null;
-
-function startCountDown() {
-  countDown.value = 60;
-  timer = setInterval(() => {
-    countDown.value--;
-    if (countDown.value <= 0) {
-      clearInterval(timer!);
-      timer = null;
-    }
-  }, 1000);
-}
-
-onUnmounted(() => {
-  if (timer) {
-    clearInterval(timer);
-    timer = null;
-  }
-});
-
-/* --------- 业务方法 --------- */
-async function handleSendCode() {
-  if (!form.phone.trim()) {
-    showToast({ message: "请输入手机号", icon: "warning-o" });
-    return;
-  }
-
-  sending.value = true;
-  try {
-    await sendSmsCode(form.phone);
-    showToast({
-      message: "验证码已发送，开发环境请查看后端日志",
-      icon: "passed",
-    });
-    startCountDown();
-  } catch (error) {
-    showToast({
-      message: readError(error, "验证码发送失败，请稍后重试"),
-      icon: "cross",
-    });
-  } finally {
-    sending.value = false;
-  }
-}
-
-function readError(error: unknown, fallback: string) {
-  if (typeof error === "object" && error && "response" in error) {
-    const response = (error as { response?: { data?: { message?: string } } })
-      .response;
-    return response?.data?.message || fallback;
-  }
-  return fallback;
-}
+const { countDown, sending, handleSendCode, readError } = useSmsCountdown();
 
 async function handleLogin() {
   if (!agreed.value) {
@@ -135,7 +81,7 @@ async function handleLogin() {
               :disabled="sending || countDown > 0"
               :loading="sending"
               class="code-btn"
-              @click="handleSendCode"
+              @click="handleSendCode(form.phone)"
             >
               {{
                 countDown > 0
diff --git a/frontend/src/views/mobile/MobileRegisterView.vue b/frontend/src/views/mobile/MobileRegisterView.vue
index 386cd18..bb3ee52 100644
--- a/frontend/src/views/mobile/MobileRegisterView.vue
+++ b/frontend/src/views/mobile/MobileRegisterView.vue
@@ -1,16 +1,15 @@
 <script setup lang="ts">
-import { onUnmounted, reactive, ref } from "vue";
+import { reactive, ref } from "vue";
 import { RouterLink, useRoute, useRouter } from "vue-router";
 import { showToast } from "vant";
 
-import { sendSmsCode } from "@/api/auth";
 import { useSessionStore } from "@/stores/session";
+import { useSmsCountdown } from "@/composables/useSmsCountdown";
 
 const router = useRouter();
 const route = useRoute();
 const session = useSessionStore();
 const loading = ref(false);
-const sending = ref(false);
 const agreed = ref(false);
 const form = reactive({
   phone: "",
@@ -18,61 +17,7 @@ const form = reactive({
   inviteCode: "",
 });
 
-/* --------- 验证码倒计时 --------- */
-const countDown = ref(0);
-let timer: ReturnType<typeof setInterval> | null = null;
-
-function startCountDown() {
-  countDown.value = 60;
-  timer = setInterval(() => {
-    countDown.value--;
-    if (countDown.value <= 0) {
-      clearInterval(timer!);
-      timer = null;
-    }
-  }, 1000);
-}
-
-onUnmounted(() => {
-  if (timer) {
-    clearInterval(timer);
-    timer = null;
-  }
-});
-
-/* --------- 业务方法 --------- */
-async function handleSendCode() {
-  if (!form.phone.trim()) {
-    showToast({ message: "请输入手机号", icon: "warning-o" });
-    return;
-  }
-
-  sending.value = true;
-  try {
-    await sendSmsCode(form.phone);
-    showToast({
-      message: "验证码已发送，开发环境请查看后端日志",
-      icon: "passed",
-    });
-    startCountDown();
-  } catch (error) {
-    showToast({
-      message: readError(error, "验证码发送失败，请稍后重试"),
-      icon: "cross",
-    });
-  } finally {
-    sending.value = false;
-  }
-}
-
-function readError(error: unknown, fallback: string) {
-  if (typeof error === "object" && error && "response" in error) {
-    const response = (error as { response?: { data?: { message?: string } } })
-      .response;
-    return response?.data?.message || fallback;
-  }
-  return fallback;
-}
+const { countDown, sending, handleSendCode, readError } = useSmsCountdown();
 
 async function handleRegister() {
   if (!agreed.value) {
@@ -138,7 +83,7 @@ async function handleRegister() {
               :disabled="sending || countDown > 0"
               :loading="sending"
               class="code-btn"
-              @click="handleSendCode"
+              @click="handleSendCode(form.phone)"
             >
               {{
                 countDown > 0