diff --git a/chat_web_front/src/assets/images/login/cassicLoginBg.jpg b/chat_web_front/src/assets/images/login/cassicLoginBg.jpg
new file mode 100644
index 0000000..c04fc62
Binary files /dev/null and b/chat_web_front/src/assets/images/login/cassicLoginBg.jpg differ
diff --git a/chat_web_front/src/router/index.ts b/chat_web_front/src/router/index.ts
index d4ba0cc..587e02e 100644
--- a/chat_web_front/src/router/index.ts
+++ b/chat_web_front/src/router/index.ts
@@ -7,13 +7,18 @@ const routes: RouteRecordRaw[] = [
   {
     path: '/',
     name: '/',
-    redirect: '/chat'
+    redirect: '/welcome'
   },
   {
     path: '/login',
     name: 'Login',
     component: () => import('@/views/login/index.vue'),
   },
+  {
+    path: '/welcome',
+    name: 'Welcome',
+    component: () => import('@/views/welcome/index.vue'),
+  },
   {
     path: '/chat',
     name: 'Chat',
diff --git a/chat_web_front/src/views/login/index.vue b/chat_web_front/src/views/login/index.vue
index 04ba1e2..039a324 100644
--- a/chat_web_front/src/views/login/index.vue
+++ b/chat_web_front/src/views/login/index.vue
@@ -1,215 +1,351 @@
 <template>
-  <div class="loginPage">
-    <Waves></Waves>
-    <div>
-      <img :src="projectLogo" alt="" class="loginLogo" />
-    </div>
-    <div class="loginContent">
-      <div class="loginTitle">
-        <div>
-          聚尖端之力，创多维平台
-          <br />
-          <span class="loginInfo">
-            聚合科技动能，扩展创新疆界，引领行业跃迁升级
-          </span>
+  <div class="cassicLogin">
+    <!-- 背景：CASSIC logo + 红金渐变 + 波纹粒子（图片直接做底） -->
+    <div class="bgImage"></div>
+
+    <!-- 中央登录卡 -->
+    <div class="loginCard">
+      <h2 class="title">登录注册中心</h2>
+      <div class="titleBar"></div>
+
+      <el-form
+        ref="formRef"
+        :model="form"
+        :rules="rules"
+        hide-required-asterisk
+        class="form"
+        @submit.prevent
+      >
+        <!-- 账号 -->
+        <el-form-item prop="tel">
+          <el-input
+            v-model.trim="form.tel"
+            :placeholder="loginMode === 'sms' ? '请输入手机号' : '请输入账号'"
+            size="large"
+          >
+            <template #prefix>
+              <span class="iconBox"><el-icon><User /></el-icon></span>
+            </template>
+          </el-input>
+        </el-form-item>
+
+        <!-- 密码 -->
+        <el-form-item v-if="loginMode === 'password'" prop="password">
+          <el-input
+            v-model.trim="form.password"
+            type="password"
+            placeholder="请输入密码"
+            size="large"
+            show-password
+          >
+            <template #prefix>
+              <span class="iconBox"><el-icon><Lock /></el-icon></span>
+            </template>
+          </el-input>
+        </el-form-item>
+
+        <!-- 验证码（图形 / 短信） -->
+        <el-form-item prop="captcha" v-if="loginMode === 'sms' || showCaptcha">
+          <div class="captchaRow">
+            <el-input
+              v-model.trim="form.captcha"
+              :placeholder="loginMode === 'sms' ? '请输入短信验证码' : '请输入验证码'"
+              size="large"
+            >
+              <template #prefix>
+                <span class="iconBox"><el-icon><Stamp /></el-icon></span>
+              </template>
+            </el-input>
+            <button
+              type="button"
+              class="captchaBtn"
+              :disabled="smsCountdown > 0"
+              @click="handleCaptcha"
+            >
+              {{ smsCountdown > 0 ? `${smsCountdown}s` : (loginMode === 'sms' ? '获取验证码' : '看不清') }}
+            </button>
+          </div>
+        </el-form-item>
+
+        <!-- 切换模式 -->
+        <div class="switchModeRow">
+          <a class="modeLink" @click="toggleMode">
+            {{ loginMode === 'password' ? '短信验证登录' : '账号密码登录' }}
+          </a>
         </div>
-      </div>
-      <div class="loginOperate">
-        <img
-          :src="projectLogo2"
-          class="logoImg"
-          alt=""
-        />
-        <el-form
-          ref="ruleFormRef"
-          label-position="top"
-          label-width="auto"
-          :model="ruleForm"
-          :rules="rules"
-          style="width: 20vw; margin-top: 5%"
-          hide-required-asterisk
+
+        <!-- 主登录按钮 -->
+        <el-button
+          class="primaryBtn"
+          :loading="submitting"
+          @click="handleSubmit"
         >
-          <el-form-item label="手机号" prop="tel">
-            <el-input v-model.trim="ruleForm.tel" />
-          </el-form-item>
-          <el-form-item label="密码" prop="password">
-            <el-input v-model.trim="ruleForm.password" show-password />
-          </el-form-item>
-          <el-form-item prop="checked">
-            <el-checkbox v-model="ruleForm.checked" label="" size="large" />
-            <span
-              >勾选即代表您阅读并同意<a
-                target="_blank"
-                href="http://www.metalinfo.cn/agreement.html?pageId=c03923c64e6b4d0896488212054b1742"
-                style="color: #0969da"
-                >《用户协议》</a
-              ></span
-            >
-          </el-form-item>
-          <el-form-item>
-            <el-button
-              type="primary"
-              style="width: 100%; margin-top: 20px"
-              @click="submitForm(ruleFormRef)"
-              :disabled="isDisabled"
-            >
-              {{ loginTip }}
-            </el-button>
-          </el-form-item>
-          <el-form-item>
-            <el-button
-              style="width: 100%; background: #FF2500; color: #fff; border-color: #FF2500;"
-              @click="goCasLogin"
-            >
-              通过统一身份登录
-            </el-button>
-          </el-form-item>
-        </el-form>
-      </div>
+          登 录
+        </el-button>
+
+        <!-- 统一身份登录 -->
+        <el-button class="casBtn" @click="goCasLogin">
+          统一身份登录（CASSIC）
+        </el-button>
+      </el-form>
     </div>
   </div>
 </template>
-<script setup lang='ts'>
-import { computed, ref, onMounted, reactive } from "vue";
-import projectLogo from "@/assets/images/login/projectLogo-white.svg";
-import projectLogo2 from "@/assets/images/login/projectLogo.svg";
+
+<script setup lang="ts">
+import { onMounted, reactive, ref } from "vue";
+import { useRouter } from "vue-router";
 import type { FormInstance, FormRules } from "element-plus";
+import { ElMessage } from "element-plus";
+import { User, Lock, Stamp } from "@element-plus/icons-vue";
 import { fetchVerify } from "@/api";
 import { useAuthStore } from "@/store";
-import { useRouter } from "vue-router";
-import Waves from "../../components/Waves.vue";
 
-interface RuleForm {
+interface LoginForm {
   tel: string;
   password: string;
-  checked: boolean;
+  captcha: string;
   loginType: number;
 }
-interface Token {
-  token: string;
-  refreshToken: string;
-  expiresIn: number;
-}
-const ruleForm = reactive<RuleForm>({
+
+const form = reactive<LoginForm>({
   tel: "",
   password: "",
-  checked: true,
+  captcha: "",
   loginType: 3,
 });
-const ruleFormRef = ref<FormInstance>();
-const authStore = useAuthStore();
-const router = useRouter();
-const isDisabled = ref<Boolean>(false);
-const loginTip = ref<string>("登录");
 
-const validateChecked = (rule: any, value: any, callback: any) => {
-  if (!value) {
-    callback(new Error("请勾选“用户协议”"));
+const formRef = ref<FormInstance>();
+const router = useRouter();
+const authStore = useAuthStore();
+const submitting = ref(false);
+const loginMode = ref<"password" | "sms">("password"); // password = 账号密码登录；sms = 短信验证登录
+const showCaptcha = ref(false); // 账号密码模式下，可选图形验证码（暂未启用，留位）
+const smsCountdown = ref(0);
+
+const rules = reactive<FormRules<LoginForm>>({
+  tel: [{ required: true, message: "请输入账号 / 手机号", trigger: "blur" }],
+  password: [{ required: true, message: "请输入密码", trigger: "blur" }],
+});
+
+const toggleMode = () => {
+  loginMode.value = loginMode.value === "password" ? "sms" : "password";
+  form.captcha = "";
+};
+
+let countdownTimer: number | null = null;
+const handleCaptcha = () => {
+  if (loginMode.value === "sms") {
+    if (!form.tel) {
+      ElMessage.warning("请先输入手机号");
+      return;
+    }
+    // 触发短信发送（后端接口待联调；先做倒计时占位）
+    smsCountdown.value = 60;
+    countdownTimer = window.setInterval(() => {
+      smsCountdown.value -= 1;
+      if (smsCountdown.value <= 0 && countdownTimer) {
+        clearInterval(countdownTimer);
+        countdownTimer = null;
+      }
+    }, 1000);
+    ElMessage.info("短信验证码功能尚未接入后端，先用账号密码模式登录");
   } else {
-    callback();
+    ElMessage.info("图形验证码暂未启用");
   }
 };
-const rules = reactive<FormRules<RuleForm>>({
-  tel: [{ required: true, message: "请输入手机号", trigger: "blur" }],
-  password: [{ required: true, message: "请输入密码", trigger: "blur" }],
-  checked: {
-    required: true,
-    message: "请勾选“用户协议”",
-    trigger: "blur",
-    validator: validateChecked,
-  },
-});
-const submitForm = async (formEl: FormInstance | undefined) => {
-  if (!formEl) return;
-  await formEl.validate((valid, fields) => {
-    if (valid) {
-      isDisabled.value = true;
-      loginTip.value = "登录中...";
-      handleVerify();
-    } else {
-      console.log("error submit!", fields);
+
+const handleSubmit = async () => {
+  if (!formRef.value) return;
+  await formRef.value.validate(async (valid) => {
+    if (!valid) return;
+    submitting.value = true;
+    try {
+      const res = await fetchVerify<{ token: string }>(form);
+      if (res.code === 200) {
+        authStore.setToken(res.data.token);
+        router.push("/welcome");
+      } else {
+        ElMessage.error(res.msg || "登录失败");
+      }
+    } finally {
+      submitting.value = false;
     }
   });
 };
-const handleVerify = async () => {
-  try {
-    fetchVerify<Token>(ruleForm).then((res) => {
-      if (res.code === 200) {
-        authStore.setToken(res.data.token);
-        router.push("/chat");
-      } else {
-        isDisabled.value = false;
-        loginTip.value = "登录";
-        ElMessage.error(res.msg);
-      }
-    });
-  } finally {
-  }
-};
 
-// 跳后端 CAS 入口；后端 302 跳 CAS 服务器
 const goCasLogin = () => {
   window.location.href = `/chat_web_backend/cas/login`;
 };
 
-// 处理 CAS 回调：URL 含 cas_token 参数 → 存 token 后跳首页
+// CAS 回调：URL 含 cas_token → 存 token + 跳 welcome
 onMounted(() => {
   const params = new URLSearchParams(window.location.search);
   const casToken = params.get("cas_token");
   if (casToken) {
     authStore.setToken(casToken);
-    window.history.replaceState({}, document.title, window.location.pathname + window.location.hash.split("?")[0]);
-    router.push("/chat");
+    window.history.replaceState(
+      {},
+      document.title,
+      window.location.pathname + window.location.hash.split("?")[0]
+    );
+    router.push("/welcome");
   }
 });
-
 </script>
+
 <style scoped lang="scss">
-.loginPage {
+.cassicLogin {
+  position: relative;
   width: 100vw;
   height: 100vh;
-  background-image: url("../../assets/images/login/loginBg.png");
-  background-size: cover;
+  overflow: hidden;
   display: flex;
-  flex-direction: column;
+  align-items: center;
+  justify-content: center;
 }
-.loginLogo {
+
+.bgImage {
   position: absolute;
-  height: 6.1vh;
-  margin: 2rem;
+  inset: 0;
+  background-image: url("../../assets/images/login/cassicLoginBg.jpg");
+  background-size: cover;
+  background-position: center;
+  z-index: 0;
 }
-.loginContent {
-  height: 100vh;
-  display: flex;
-  justify-content: space-around;
-  align-items: center;
+
+.loginCard {
+  position: relative;
   z-index: 1;
+  width: 460px;
+  padding: 40px 40px 36px;
+  border-radius: 8px;
+  background: rgba(255, 255, 255, 0.85);
+  box-shadow: 0 12px 40px rgba(120, 0, 0, 0.18);
+  backdrop-filter: blur(8px);
 }
-.loginTitle {
+
+.title {
+  margin: 0;
+  text-align: center;
+  font-size: 26px;
   font-weight: 700;
-  font-size: 7vh;
-  color: white;
-  display: flex;
-  flex-direction: column;
+  color: #c10b08;
+  letter-spacing: 2px;
 }
-.loginInfo {
-  font-weight: 300;
-  font-size: 2vh;
+
+.titleBar {
+  width: 36px;
+  height: 3px;
+  background: #c10b08;
+  border-radius: 2px;
+  margin: 12px auto 28px;
 }
-.loginOperate {
-  background: white;
-  display: flex;
-  flex-direction: column;
-  border-radius: 0.75rem;
-  align-items: center;
-  padding: 4vh;
-  .logoImg {
-    height: 5vh;
+
+.form {
+  :deep(.el-form-item) {
+    margin-bottom: 18px;
+  }
+
+  :deep(.el-input__wrapper) {
+    border-radius: 4px;
+    box-shadow: 0 0 0 1px #f3d2cf inset;
+    background: #fff;
+    padding: 4px 12px;
+  }
+
+  :deep(.el-input__wrapper.is-focus) {
+    box-shadow: 0 0 0 1px #c10b08 inset;
   }
 }
-::v-deep .is-required .el-form-item__label::after {
-  content: "*";
-  color: #ff0000;
-  margin-left: 4px;
+
+.iconBox {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 26px;
+  height: 26px;
+  border-radius: 4px;
+  background: #c10b08;
+  color: #fff;
+  font-size: 14px;
+  font-style: normal;
+  margin-right: 4px;
+  i {
+    font-style: normal;
+  }
+}
+
+.captchaRow {
+  display: flex;
+  width: 100%;
+  gap: 10px;
+  align-items: stretch;
+  .el-input {
+    flex: 1;
+  }
+}
+
+.captchaBtn {
+  flex: 0 0 110px;
+  border: none;
+  border-radius: 4px;
+  background: #f3d2cf;
+  color: #c10b08;
+  font-size: 14px;
+  cursor: pointer;
+  transition: background 0.2s;
+}
+.captchaBtn:hover:not(:disabled) {
+  background: #e8b9b6;
+}
+.captchaBtn:disabled {
+  cursor: not-allowed;
+  opacity: 0.7;
+}
+
+.switchModeRow {
+  margin: 4px 0 18px;
+}
+.modeLink {
+  font-size: 13px;
+  color: #c10b08;
+  cursor: pointer;
+  &:hover {
+    text-decoration: underline;
+  }
+}
+
+.primaryBtn {
+  width: 100%;
+  height: 48px;
+  border: none;
+  border-radius: 4px;
+  background: #c10b08;
+  color: #fff;
+  font-size: 18px;
+  letter-spacing: 8px;
+  cursor: pointer;
+
+  &:hover {
+    background: #a30907;
+  }
+}
+
+.casBtn {
+  width: 100%;
+  height: 44px;
+  margin-top: 12px;
+  margin-left: 0;
+  border-radius: 4px;
+  border: 1px solid #c10b08;
+  background: rgba(255, 255, 255, 0.6);
+  color: #c10b08;
+  font-size: 15px;
+
+  &:hover {
+    background: rgba(255, 255, 255, 0.85);
+    border-color: #a30907;
+  }
 }
 </style>
diff --git a/chat_web_front/src/views/welcome/index.vue b/chat_web_front/src/views/welcome/index.vue
new file mode 100644
index 0000000..ceb2992
--- /dev/null
+++ b/chat_web_front/src/views/welcome/index.vue
@@ -0,0 +1,111 @@
+<template>
+  <div class="welcomePage">
+    <Waves></Waves>
+    <img :src="projectLogo" alt="" class="welcomeLogo" />
+    <div class="welcomeContent">
+      <div class="welcomeTitle">
+        <div>
+          聚尖端之力，创多维平台
+          <br />
+          <span class="welcomeInfo">
+            聚合科技动能，扩展创新疆界，引领行业跃迁升级
+          </span>
+        </div>
+      </div>
+      <div class="enterAction">
+        <button class="glassBtn" @click="goChat">
+          <span>立即体验</span>
+          <i class="arrow">→</i>
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useRouter } from "vue-router";
+import projectLogo from "@/assets/images/login/projectLogo-white.svg";
+import Waves from "../../components/Waves.vue";
+
+const router = useRouter();
+const goChat = () => {
+  router.push("/chat");
+};
+</script>
+
+<style scoped lang="scss">
+.welcomePage {
+  width: 100vw;
+  height: 100vh;
+  background-image: url("../../assets/images/login/loginBg.png");
+  background-size: cover;
+  display: flex;
+  flex-direction: column;
+}
+.welcomeLogo {
+  position: absolute;
+  height: 6.1vh;
+  margin: 2rem;
+}
+.welcomeContent {
+  height: 100vh;
+  display: flex;
+  justify-content: space-around;
+  align-items: center;
+  z-index: 1;
+}
+.welcomeTitle {
+  font-weight: 700;
+  font-size: 7vh;
+  color: white;
+  display: flex;
+  flex-direction: column;
+}
+.welcomeInfo {
+  font-weight: 300;
+  font-size: 2vh;
+}
+.enterAction {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+.glassBtn {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  padding: 18px 44px;
+  font-size: 22px;
+  font-weight: 500;
+  color: #ffffff;
+  background: rgba(255, 255, 255, 0.08);
+  backdrop-filter: blur(14px);
+  -webkit-backdrop-filter: blur(14px);
+  border: 1px solid rgba(255, 255, 255, 0.35);
+  border-radius: 999px;
+  cursor: pointer;
+  transition: all 0.25s ease;
+  box-shadow:
+    inset 0 1px 0 rgba(255, 255, 255, 0.25),
+    0 8px 32px rgba(0, 0, 0, 0.18);
+}
+.glassBtn:hover {
+  background: rgba(255, 255, 255, 0.18);
+  border-color: rgba(255, 255, 255, 0.6);
+  transform: translateY(-1px);
+}
+.glassBtn:active {
+  transform: translateY(0);
+}
+.glassBtn .arrow {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 28px;
+  height: 28px;
+  font-style: normal;
+  font-size: 18px;
+  border: 1px solid rgba(255, 255, 255, 0.5);
+  border-radius: 50%;
+}
+</style>